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US 2,681,523 A
Filed
: 12/10/1951
Issued
: 06/22/1954
Est. Priority Date
: 12/10/1951
Status: Expired due to Term
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Current Assignee
William H. Sellers
Original Assignee
William H. Sellers
Inventors
Sellers, William H.
Application Number
US03/260,883
Time in Patent Office
925 Days
Field of Search
US Class Current
40/495
CPC Class Codes
G09F 11/23
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