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1. Installation of a model man cage at the Avoca Shaft of the Heidelberg Coal Co., Avoca, Luzerne County, Pa.

Creator Personal:
Mather, Joseph V., McCleary, E. H.
Title:
Installation of a model man cage at the Avoca Shaft of the Heidelberg Coal Co., Avoca, Luzerne County, Pa.
Call Number:
P19458
Date:
1947
Description:

Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7407 (1947).

Subject Topical:
Mine safety., Coal mines and mining--Pennsylvania--Safety measures.
All:
Mine safety., Coal mines and mining--Pennsylvania--Safety measures.