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External filter support for underwater camera casings
US 2,855,826 A
Filed
: 07/19/1955
Issued
: 10/14/1958
Est. Priority Date
: 08/10/1954
Status: Expired due to Term
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Current Assignee
David L. Jayet
Original Assignee
David L. Jayet
Inventors
Jayet, David L.
Application Number
US03/522,990
Time in Patent Office
1,183 Days
Field of Search
US Class Current
359/892
CPC Class Codes
G03B 17/08
Waterproof bodies or housings
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