US PATENT SUBCLASS 111 / 70
.~.~ Rigid
Current as of:
June, 1999
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111 /
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PLANTING
14
DF
DRILLING
{12}
52
DF
.~ Frame and planting-element arrangement {4}
70
.~.~ Rigid {1}
71
DF
.~.~.~
> Single row {6}
DEFINITION
Classification: 111/70
(under subclass 52) Devices wherein the frame is of general rigid structure or has no hinged or articulated parts.
