US PATENT SUBCLASS 81 / 470
.~.~.~ Fluid motor

Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
467  DF  .~ Responsive to torque on work {7}
469  DF  .~.~ Means for regulating motor {1}
470.~.~.~ Fluid motor

DEFINITION

Classification: 81/470

Fluid motor:

(under subclass 469) Wrench or screwdriver in which the motor is operated by a fluid substance which does not alter in chemical composition while in the motor.