BOOKQUE

Consumption of Explosives in September, 1925
Arno Carl Fieldner , C. H. Shapiro , Charles Wesley Davis , Ludwig Schmidt , William Waugh Adams
· 1925
Gas Mask for Protection in Air Against All Gases, Vapors, and Smoke
United States. Bureau of Mines
· 1928
No image available
A Carbon Monoxide Recorder and Alarm
Sidney Hershberg Katz , D. A. Reynolds , H. W. Frevert , John Jacob Bloomfield
· 1926
No image available
Gas Mask for Protection Against Ammonia Gas
Arno Carl Fieldner , Sidney Hershberg Katz , H. W. Frevert
· 1926
No image available
Report of Investigations 2724-2788: Jan.-Dec. 1926
United States. Bureau of Mines
· 1926
No image available
Gas Mask for Protection in Air Against All Gases, Vapors, and Smokes
Arno Carl Fieldner
· 1925
No image available
Carbon Monoxide in Exhaust Gas from Motor Vehicles in Relation to Tunnel Ventilation
A. C. Davis , H. W. Frevert , Port of New York Authority
· 1935
No image available
A Carbon Monoxide Recorder and Alarm
Sidney Hershberg Katz , D. A. Reynolds , H. W. Frevert , John Jacob Bloomfield
· 1926
No image available
Collection and Examination of Explosive Dusts in Air
Louis Jacob Trostel , H. W. Frevert
· 1923
No image available
A Carton Monoxide Recorder and Alarm, by S. H. Katz D. A. Reynolds, H. N. Frevert and J. J. Bloomfield
S. H. Katz , H. W. Frevert , J. J. Bloomfield
· 1926