Hazards Of Churn Drilling
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Describes the churn drilling operations in surface ore mining. Shows the drilling hazards and the incorrect, unsafe work procedures. Presents the safe methods of drilling and emphasizes the need for the constantly alert workman.
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- 16mm Filmography (legacy record) — title, year, format, sound, description, catalog record
- usgov-av-1974 — title, year, creator, length, color, sound, description
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