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Suspension device for endless tractor flights
US 1,443,556 A
Filed
: 02/09/1920
Issued
: 01/30/1923
Est. Priority Date
: 02/09/1920
Status: Expired due to Term
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Current Assignee
Carroll N. Beal
,
Fay C. Beal
Original Assignee
Carroll N. Beal
,
Fay C. Beal
Inventors
Beal, Fay C.
,
Beal, Carroll N.
Application Number
US02/357,262
Time in Patent Office
1,086 Days
Field of Search
US Class Current
305/132
CPC Class Codes
B62D 55/108
with mechanical springs, e....
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