Title:
Gas-mask
United States Patent 1362766


Inventors:
Martin, Mcgargill James
Application Number:
US33629319A
Publication Date:
12/21/1920
Filing Date:
11/07/1919
Assignee:
Martin, Mcgargill James
Primary Class:
Other Classes:
128/206.11, 128/206.24, 128/206.29
International Classes:
A62B18/02
View Patent Images: