US PATENT SUBCLASS 29 / 272
.~.~.~ Tube with tube

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}
271  DF  .~.~ Aligner or center {3}
272.~.~.~ Tube with tube

DEFINITION

Classification: 29/272

Tube with tube:

(under subclass 271) Apparatus for aligning tubes with tubes.