US PATENT SUBCLASS 144 / 97
.~ Wheel hub

Current as of: June, 1999
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144 /   HD   WOODWORKING

92  DF  BORING MACHINE {6}
97.~ Wheel hub {2}
98  DF  .~.~> Axially using stationary bitstock
99  DF  .~.~> Axially using stationary workholder {1}

DEFINITION

Classification: 144/97

Wheel hub:

(under subclass 92) Machine adapted to bore spoke-holes in the hub.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, for a combined special work machine for wheel tenoning and boring.