US PATENT SUBCLASS 172 / 559
.~.~ Rotatably mounted cleaning means
Current as of:
June, 1999
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172 /
HD
EARTH WORKING
518
DF
ROLLING, ROTATING OR ORBITALLY MOVING TOOL
{30}
558
DF
.~ With disk cleaning means {6}
559
.~.~ Rotatably mounted cleaning means
DEFINITION
Classification: 172/559
(under subclass 558) Apparatus in which the earth-removing means is supported for free rotation in position to remove accumulated soil from the platelike member.