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Open-cycle breathing apparatus
US 2,882,895 A
Filed
: 09/26/1956
Issued
: 04/21/1959
Est. Priority Date
: 10/01/1955
Status: Expired due to Term
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Current Assignee
Roberto Galeazzi
Original Assignee
Roberto Galeazzi
Inventors
Galeazzi, Roberto
Application Number
US03/612,238
Time in Patent Office
937 Days
Field of Search
US Class Current
128/200.29
CPC Class Codes
A62B 7/04
and lung-controlled oxygen ...
A62B 9/022
Breathing demand regulators...
B63C 11/14
with forced air supply
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