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PLANTER AND FERTILIZER ATTACHMENT
US 3,512,489 A
Filed
: 02/21/1967
Issued
: 05/19/1970
Est. Priority Date
: 02/21/1967
Status: Expired due to Term
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Current Assignee
Charles W. Coldren
,
Hopkins, Richard G.
Original Assignee
Charles W. Coldren
,
Hopkins, Richard G.
Inventors
Coldren, Charles W.
,
Hopkins, Richard G.
Application Number
US04/617,534
Time in Patent Office
1,183 Days
Field of Search
US Class Current
111/173
CPC Class Codes
A01C 5/08
Machines for both manuring ...
Y10S 111/924
Minimum and no till planter
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