US PATENT SUBCLASS 15 / 104.19
.~.~.~.~.~ Expanding between ends

Current as of: June, 1999
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15 /   HD   BRUSHING, SCRUBBING, AND GENERAL CLEANING

104.001  DF  IMPLEMENTS {28}
104.03  DF  .~ Pipe, tube, or conduit cleaner {2}
104.05  DF  .~.~ Inside {8}
*  DD  .~.~.~ Reciprocating tool {2}
104.16  DF  .~.~.~.~ Scraper, cutter, wiper or brush {5}
104.19.~.~.~.~.~ Expanding between ends

DEFINITION

Classification: 15/104.19

The variation of size takes place intermediate the ends of the tool body.