Title:
RESPIRATORY APPARATUS
United States Patent 3515163


Inventors:
Freeman, Maurice Frederick
Application Number:
US3515163DA
Publication Date:
06/02/1970
Filing Date:
02/26/1968
Assignee:
EAST & CO LTD H G
Primary Class:
Other Classes:
251/65
International Classes:
A61M16/20; (IPC1-7): A61M16/00; F16K15/02; G05B7/00
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