Title:
PROTECTING FROM POISONOUS GAS IN WARFARE.
United States Patent 1225521
Inventors:
STEINMETZ JOSEPH A (US)
Application Number:
US4913315A
Filing Date:
09/04/1915
Assignee:
JOSEPH A. STEINMETZ
Primary Class:
Other Classes:
55/DIG.29, 89/1.11, 244/114R, 454/370
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