US PATENT SUBCLASS 172 / 121
.~.~ Laterally extending bar or blade with skeleton support (e.g., lawn mower type, etc.)

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

35  DF  WITH DRIVE MEANS FOR TOOL OR CLEANER {37}
118  DF  .~ Tool driven about axis transverse to draft line {5}
121.~.~ Laterally extending bar or blade with skeleton support (e.g., lawn mower type, etc.)

DEFINITION

Classification: 172/121

(under subclass 118) Apparatus in which the driven earth working element includes a laterally extending bar or earth working part or portion held on a rotatable support by openwork or by spaced supporting means.

(1) Note. The overall appearance of these earth working elements is very similar to that of a conventional lawn mower.

SEE OR SEARCH THIS CLASS, SUBCLASS:

552, for nondriven earth working elements having laterally extending blades on skeleton supports.