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.