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Space reference device
US 2,683,247 A
Filed
: 08/08/1952
Issued
: 07/06/1954
Est. Priority Date
: 08/08/1952
Status: Expired due to Term
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Current Assignee
Wiley, Carl A.
Original Assignee
Wiley, Carl A.
Inventors
Wiley, Carl A.
Application Number
US03/303,447
Time in Patent Office
697 Days
Field of Search
US Class Current
318/648
CPC Class Codes
G01C 19/56
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