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US 3,018,475 A
Filed
: 02/15/1960
Issued
: 01/23/1962
Est. Priority Date
: 02/15/1960
Status: Expired due to Term
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7
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Current Assignee
Clarence S. Jones
,
Robert A. Kleist
Original Assignee
Clarence S. Jones
,
Robert A. Kleist
Inventors
Kleist, Robert A.
,
Jones, Clarence S.
Application Number
US04/008,723
Time in Patent Office
708 Days
Field of Search
US Class Current
340/10.4
CPC Class Codes
B61L 25/04
Indicating or recording tra...
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