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ANTI-CLOGGING ATTACHMENT FOR MOLDBOARD PLOWS
US 3,503,449 A
Filed
: 01/05/1968
Issued
: 03/31/1970
Est. Priority Date
: 01/05/1968
Status: Expired due to Term
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Current Assignee
Otto R. Schaper
Original Assignee
Otto R. Schaper
Inventors
Schaper, Otto R.
Application Number
US04/696,007
Time in Patent Office
816 Days
Field of Search
US Class Current
172/39
CPC Class Codes
A01B 17/002
Means for putting manure, d...
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