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Optical ground-speed meter
US 2,967,449 A
Filed
: 01/06/1955
Issued
: 01/10/1961
Est. Priority Date
: 01/06/1955
Status: Expired due to Term
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Current Assignee
Morris Weiss
Original Assignee
Morris Weiss
Inventors
Weiss, Morris
Application Number
US03/480,255
Time in Patent Office
2,196 Days
Field of Search
US Class Current
356/28
CPC Class Codes
G01P 3/806
in devices of the type to b...
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