US PATENT SUBCLASS 29 / 813
.~.~.~ One work part comprising nut or screw

Current as of: June, 1999
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29 /   HD   METAL WORKING

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
809  DF  .~ With magazine supply {3}
811.2  DF  .~.~ Assembling means comprising hand-manipulatable implement {6}
813.~.~.~ One work part comprising nut or screw

DEFINITION

Classification: 29/813

One work part comprising nut or screw:

(under subclass 811) Apparatus including means to secure one workpiece to another by rotating one with respect to the other and utilizing relative helical ribbing of one of the workpieces to cause the securement.