Title:
Arrangement in breathing apparatus
United States Patent 3149631


Inventors:
Wilhelm, Svenson Knut
Application Number:
US8327861A
Publication Date:
09/22/1964
Filing Date:
01/17/1961
Assignee:
GASACCUMULATOR SVENSKA AB
Primary Class:
Other Classes:
137/505.39, 137/908
International Classes:
A62B9/02; B60S1/52
View Patent Images:
US Patent References: