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CONTROL SYSTEM FOR EXCAVATING MACHINERY
US 3,518,444 A
Filed
: 10/23/1964
Issued
: 06/30/1970
Est. Priority Date
: 10/23/1964
Status: Expired due to Term
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Current Assignee
Becor Western, Inc.
(Caterpillar Incorporated)
Original Assignee
Donald E. Barber
Inventors
Barber, Donald E.
Application Number
US04/405,930
Time in Patent Office
2,076 Days
Field of Search
US Class Current
290/14
CPC Class Codes
E02F 9/2025
Particular purposes of cont...
H02P 7/34
using Ward-Leonard arrangem...
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