A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Respirators -- Their uses and limitations
Features of various types; development of effective respirators has been greatly aided through approval system sot up by Bureau of Mines; handicap resulting from workman's dislike of respirators. (Cement Mill Sec)
Respirators -- Their uses and limitations
Features of various types; development of effective respirators has been greatly aided through approval system sot up by Bureau of Mines; handicap resulting from workman's dislike of respirators. (Cement Mill Sec)
Respirators -- Their uses and limitations
Concrete
Concrete ; 45
1937
2 pages
Article (Journal)
English
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