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Passive range measuring device
US 2,837,738 A
Filed
: 08/10/1955
Issued
: 06/03/1958
Est. Priority Date
: 08/10/1955
Status: Expired due to Term
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Current Assignee
Valkenburgh Lester D Van
Original Assignee
Valkenburgh Lester D Van
Inventors
VALKENBURGH LESTER D VAN
Application Number
US03/527,557
Time in Patent Office
1,028 Days
Field of Search
US Class Current
342/455
CPC Class Codes
G01S 11/02
using radio waves G01S19/00...
Y10S 367/909
Collision avoidance
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