Title:
Indicating gas-mask canister
United States Patent 1537519


Inventors:
Max, Yablick
Application Number:
US75410824A
Publication Date:
05/12/1925
Filing Date:
12/05/1924
Assignee:
Max, Yablick
Primary Class:
Other Classes:
55/DIG.33, 55/DIG.34, 422/120, 422/239, 423/210, 436/2, 436/113, 436/121, 436/122, 436/134
International Classes:
A62B18/08
View Patent Images: