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US 2,868,196 A
Filed
: 08/18/1954
Issued
: 01/13/1959
Est. Priority Date
: 07/27/1953
Status: Expired due to Term
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61 Citations
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Current Assignee
Stampe Gerhard K E H
Original Assignee
Stampe Gerhard K E H
Inventors
STAMPE GERHARD K E H
Application Number
US03/450,770
Time in Patent Office
1,609 Days
Field of Search
US Class Current
128/206.15
CPC Class Codes
A62B 18/025
Halfmasks A62B23/02 takes p...
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