US PATENT SUBCLASS 37 / 247
.~.~ Rotor shaft adjustable relative to direction of travel

Current as of: June, 1999
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37 /   HD   EXCAVATING

196  DF  SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE {16}
244  DF  .~ Motorized rotary excavating tool {8}
247.~.~ Rotor shaft adjustable relative to direction of travel

DEFINITION

Classification: 37/247

Rotor shaft adjustable relative to direction of travel:

(under subclass 244) Apparatus including means to adjust the shaft to any one of a plurality of selected angular orientations with respect to the intended direction of motion.