US PATENT SUBCLASS 15 / 89
.~ Beating

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

3  DF  MACHINES {11}
89.~ Beating {2}
90  DF  .~.~> Rotary drum
91  DF  .~.~> Stationary work {1}

DEFINITION

Classification: 15/89

Cleaning-machines in which the cleaning is done by beating only.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5, 6, 12, 13, 90, 91, and 92.

SEE OR SEARCH CLASS

29, Metal Working,

81.01+, for processes and apparatus for removing scale from metal sheets and bars by scraping, flexing, treating with water or steam, or by impacting with percussive tools, e.g., scaling hammers.

451, Abrading,

326+, for an abrading machine including means for tumbling to abrade a workpiece.