Title:
Breathing apparatus
United States Patent 2882896


Inventors:
Seeler, Henry W.
Application Number:
US52288755A
Publication Date:
04/21/1959
Filing Date:
07/18/1955
Assignee:
Seeler, Henry W.
Primary Class:
International Classes:
A62B18/04; A62B18/08
View Patent Images:
US Patent References:
2465973High elevation mask1949-03-29
2377122Welding helmet1945-05-29
2353643Head harness for masks1944-07-18
2108256Breathing apparatus1938-02-15
Foreign References:
FR472897A1914-12-22
DE659476C1938-05-04
CH209468A1940-04-15
FR996207A1951-12-17