US PATENT SUBCLASS 144 / 28.72
.~.~.~.~ Including orbital or electric motor drive

Current as of: June, 1999
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144 /   HD   WOODWORKING

2.1  DF  SPECIAL-WORK MACHINE {34}
28.1  DF  .~ Pencil sharpening {3}
28.3  DF  .~.~ Movable tool {4}
28.6  DF  .~.~.~ Rotatable or revolvable {3}
28.72.~.~.~.~ Including orbital or electric motor drive

DEFINITION

Classification: 144/28.72

Including orbital or electric motor drive:

(under subclass 28.6) Machine including means for rotating

the tool, which means either (a) includes a pair of rotatable elements having peripheral surfaces in continuous engagement with, and movable relative to, one another for transfer of motive force between said elements or (b) is powered by electrical energy.