US PATENT SUBCLASS 172 / 553
.~.~.~ Toothed bar or blade


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

518  DF  ROLLING, ROTATING OR ORBITALLY MOVING TOOL {30}
540  DF  .~ Tool has circumferentially spaced teeth, tines, blades or the like {13}
552  DF  .~.~ Laterally extending bar or blade with skeleton support (e.g., lawn mower type, etc.) {1}
553.~.~.~ Toothed bar or blade


DEFINITION

Classification: 172/553

(under subclass 552) Apparatus in which the laterally extending blade portion is provided with or formed of a number of spaced prongs, teeth, notches, or the like ground-working projections.