US PATENT SUBCLASS 172 / 227
.~.~.~.~ Chain or cable

Current as of: June, 1999
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172 /   HD   EARTH WORKING

204  DF  ALTERNATING FOR RIGHT OR LEFT HAND OPERATION (OTHER THAN SCRAPER) {10}
224  DF  .~ Axially rotatable implement {1}
225  DF  .~.~ With actuator {1}
226  DF  .~.~.~ Gearing {1}
227.~.~.~.~ Chain or cable

DEFINITION

Classification: 172/227

(under subclass 226) Apparatus in which the gearing comprises a flexible member (e.g., chain or cable) cooperating with a sprocket or drum, rotation of the sprocket or drum effecting rotation of the earth working elements.