| Origin of Land Plants / Liverworts |
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| Origin and Synthesis of Plastics Materials |
1945 |
United States. Office of Education. |
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| Orientation: Attitude, Appearance, Approach |
1979 |
Churchill Films Bosustow Productions |
600 Feet |
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| Oriental Art |
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WPBT-TV |
1080 ft. |
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| Organizing/ Coordinating |
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| Organizing Facts About Relationships |
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| Organism |
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| Organic |
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| Ordinary People (WW II Propaganda) |
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12:00 |
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| Ordinary People |
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12:00 |
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| Ordinary People |
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12:00 |
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| Ordinal Scales of Infant Psychological Development: Development of Means |
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1600 |
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| Ordinal Scales of Infant Psychological Development, #6- Development of Schema |
1966 |
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12:00 |
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| Ordinal Scales of Infant Psychological Development -- Development of Schemes |
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12:00 |
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| Ordinal Scales of Infant Psychological Development - Object Permanence |
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1600 |
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| Orders of Insects |
1950 |
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12:00 |
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| Order of the Silver Platters |
1978 |
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| Order in Diversity |
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12:00 |
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| Ordeal by Accidents |
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12:00 |
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| Ordeal by Accident |
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12:00 |
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| Ordeal By Accident |
1970 |
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10:00 |
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| Orchestra: Whats A Horn? |
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| Orchestra Soundie: Eula Beal, The Lord’s prayer, Elanine Malbin |
1940 |
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16mm |
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| Orbital Shapes and Paths |
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| Oranges |
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| Orange Grower |
1967 |
Encyclopaedia Britannica |
576 ft. #16 |
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| Orange Grower |
1967 |
Encyclopaedia Britannica Educational Corporation |
800 Feet |
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| Orange and Blue |
1962 |
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| Orange |
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| Oral Language Development: Views of Five Teachers |
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12:00 |
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| Oral Language Breakthrough to Reading |
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12:00 |
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| Oral Hygiene For The Total Care Patient |
1970 |
Veterans Administration |
600 |
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Color |
Optical sound |
| Oral Analgesics and Pain Management |
1979 |
Neil Labs Inc. |
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| Opus |
1969 |
British Govt. Central Office of Info. |
12:00 |
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| Optometric Prescription : Manufacture and Fabrication |
1950 |
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12:00 |
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| Options for life |
1979 |
Altschul Group Corporation |
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16mm |
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sound |
| Options |
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12:00 |
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| Optimist-Pessimist: Which Are You? |
1975 |
Disney |
576 ft. #16 |
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| Optical Addresser |
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| Opps, I Made A Mistake |
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| Opposites in Harmony |
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| Opportunities Unlimited: Through A Program of Vocational Education |
1960 |
Virginia State Dept of Education |
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| Opportunities in Welding |
1970 |
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| Opportunities in Clerical Work |
1972 |
Sterling Educational Films Inc. (STERLED) |
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| Opportunities in Clerical Work |
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| Operations on the Milling Machine: No. 1 Cutting Keyways |
1941 |
Caravel Films |
600 |
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| Operation Red Hat |
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Journal Films |
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| Operation of the Motorcycle |
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| Operation Liner |
1967 |
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| Operation Jetliner |
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Western Electric |
600 ft. |
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