US PATENT SUBCLASS 81 / 430
.~.~.~ Utilizing fluid to convey work


Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
54  DF  .~ Machine {10}
57.37  DF  .~.~ With feed or magazine means {6}
430.~.~.~ Utilizing fluid to convey work


DEFINITION

Classification: 81/430

Utilizing fluid to convey work:

(under subclass 57.37) Feed means in which a fluid current is utilized to push the pieces of work towards the work-engaging and strain-exerting portion of the wrench or screwdriver.