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US 2,539,413 A
Filed
: 04/06/1946
Issued
: 01/30/1951
Est. Priority Date
: 04/06/1946
Status: Expired due to Term
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Current Assignee
Laurin G. Fischer
Original Assignee
Laurin G. Fischer
Inventors
Fischer, Laurin G.
Application Number
US02/660,101
Time in Patent Office
1,760 Days
Field of Search
US Class Current
342/441
CPC Class Codes
G01S 1/02
using radio waves G01S19/00...
H01Q 3/00
Arrangements for changing o...
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