US PATENT SUBCLASS 451 / 156
.~.~.~.~.~ Hydraulic driver

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
119  DF  .~ Rotary reciprocating tool {2}
120  DF  .~.~ Cylindrical tool {2}
124  DF  .~.~.~ Rectilinear {13}
155  DF  .~.~.~.~ Reciprocating spindle {2}
156.~.~.~.~.~ Hydraulic driver

DEFINITION

Classification: 451/156

Hydraulic driver:

(under subclass 155) Abrading machine wherein the reciprocating motion is effected by a fluid motor.