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US 2,640,286 A
Filed
: 04/11/1950
Issued
: 06/02/1953
Est. Priority Date
: 04/11/1950
Status: Expired due to Term
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3 Citations
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Current Assignee
Ernest V. Briscoe
Original Assignee
Ernest V. Briscoe
Inventors
Briscoe, Ernest V.
Application Number
US03/155,195
Time in Patent Office
1,148 Days
Field of Search
US Class Current
172/199
CPC Class Codes
E02F 3/7686
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