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You searched for: All Creators Weaver, H. F. Remove constraint All Creators: Weaver, H. F.
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1. Mine-fan signal alarms and power releases.

Creator Personal:
Fene, W. J. (William Joseph), 1891-, Weaver, H. F.
Title:
Mine-fan signal alarms and power releases.
Call Number:
P19474
Date:
1943
Description:

Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7262 (1943:Nov.)

Subject Topical:
Mine ventilation--Equipment and supplies--Safety measures.
All:
Mine ventilation--Equipment and supplies--Safety measures.