US PATENT SUBCLASS 15 / 93.1
.~ Scraping

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

3  DF  MACHINES {11}
93.1.~ Scraping {3}
93.2  DF  .~.~> Coke oven cleaner
93.3  DF  .~.~> Ditcher
93.4  DF  .~.~> Pallet, board, panel, etc.

DEFINITION

Classification: 15/93.1

Scraping:

(under subclass 3) Subject matter wherein the sole type of cleaning instrument of the machine is a scraper.

(1) Note. See search note under subclass 236.01 of this class.

SEE OR SEARCH CLASS

29, Metal Working,

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

451, Abrading,

103+, for apparatus for scouring by abrading.