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Microwave protective system
US 2,660,718 A
Filed
: 12/30/1949
Issued
: 11/24/1953
Est. Priority Date
: 12/30/1949
Status: Expired due to Term
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Current Assignee
Ellsworth D. Cook
,
Harry R. Summerhayes Jr
Original Assignee
Ellsworth D. Cook
,
Harry R. Summerhayes Jr
Inventors
Summerhayes, Harry R. Jr.
,
Cook, Ellsworth D.
Application Number
US03/135,916
Time in Patent Office
1,425 Days
Field of Search
US Class Current
340/552
CPC Class Codes
G01V 3/12
operating with electromagne...
G08B 13/2491
Intrusion detection systems...
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