US PATENT SUBCLASS 451 / 349
.~.~ Edge-tool sharpener

Current as of: June, 1999
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451 /   HD   ABRADING

340  DF  FRAME OR MOUNT {4}
344  DF  .~ Portable abrader {12}
349.~.~ Edge-tool sharpener

DEFINITION

Classification: 451/349

Edge-tool sharpener:

(under subclass 344) Frame or mount for an abrading device especially adapted for use refurbishing the sharp edge of the blade of a cutting device.

(1) Note. Sharpening a harvester knife is included herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

122, 128, 225, 230, 235, 372+, and 421, for other inventions related to sharpening an agricultural blade (e.g., a mower or reaper knife).