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✎ Suggest a correctionVarious activities of state industrial hygiene engineers; factory dust counts, silicosis prevention measures in mines, etc.; and low-pressure experiments of Division of Industrial Hygiene
Complete catalog record
Type: Motion Picture
Sources
- 3434 U.S. Government Films — title, year, creator, length, format, description, catalog record
- Wikidata · Q67654264 ↗
Record added 2026-07-13 14:19:23 · Suggest a correction