US PATENT SUBCLASS 172 / 251
.~.~ Tool changeable to diverse tool

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

245  DF  CONVERTIBLE; OR CHANGEABLE BY DISASSEMBLY OR ASSEMBLY {5}
250  DF  .~ Changeable by disassembly or assembly {3}
251.~.~ Tool changeable to diverse tool {1}
252  DF  .~.~.~> Tool plus added part forms diverse tool

DEFINITION

Classification: 172/251

(under subclass 250) Apparatus which is changeable from a device having an earth working element of one kind to a device in which said earth working element has been replaced by or changed to an earthworking element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

136, for diverse tools, not of the hand-held type, carried at the same time in an apparatus but usable alternately only, by disassembling and assembling the tools to change their position with respect to the earth.