US PATENT SUBCLASS 15 / 176.2
.~.~.~.~ With handle-head cooperating threads

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

104.001  DF  IMPLEMENTS {28}
159.1  DF  .~ Brush or broom {11}
171  DF  .~.~ Heads and casings {7}
176.1  DF  .~.~.~ Detachable head {4}
176.2.~.~.~.~ With handle-head cooperating threads

DEFINITION

Classification: 15/176.2

With handle-head cooperating threads:

(under subclass 176.1) Subject matter wherein either the head or the handle has a threaded projection which cooperates with a threaded recess in the other to secure the one to the other by relative rotation.