US PATENT SUBCLASS 29 / 281
.~.~.~.~ Thread-tapping grip

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

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
270  DF  .~ Means comprising hand manipulatable tool {3}
278  DF  .~.~ Hand gripper for direct push or pull {2}
280  DF  .~.~.~ Tube sleeve or ferrule applying or removing {1}
281.~.~.~.~ Thread-tapping grip

DEFINITION

Classification: 29/281

Thread-tapping grip:

(under subclass 280) Apparatus that grips the tube, sleeve, or ferrule by means of screwing into the same a tapered threaded point in the nature of a tap.

SEE OR SEARCH CLASS

408, Cutting by Use of Rotating Axially Moving Tool,

215+, for a tool of that class including pitch stabilizing ridge.

470, Threaded, Headed Fastener, or Washer Making: Process and Apparatus,

197, for tap dies used in a Class 470 machine for cutting interior screw threads.