2026-04-07T19:45:07Z

How mine workers can help to prevent mne explosions.

Call Number:

P19472

Date:

1940

Description:

Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7138 (1940:Nov.).

Subject Topical:

Coal mine accidents--United States., Mine explosions--United States., Mine fires--United States.

All:

Coal mine accidents--United States., Mine fires--United States., Mine explosions--United States.