Title:
Row marker
United States Patent 3072200
US Patent References:
Marker
- - 1911218

Tractor implement
- - 2046466

Row marker
- - 2175282

Tractor mounted reciprocating cutting assembly
- - 2832183


Inventors:
Yerkes, Dean H.
Publication Date:
01/08/1963
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Assignee:
ALLIS CHALMERS MFG CO
Primary Class:
172/126
International Classes:
A01B69/02