US PATENT SUBCLASS 15 / 320
.~.~ With liquid or other cleaning material application to work

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

3  DF  MACHINES {11}
300.1  DF  .~ With air blast or suction {26}
320.~.~ With liquid or other cleaning material application to work {2}
321  DF  .~.~.~> Manipulatable nozzle with flexible conduit connection to portable power and/or material supply unit, e.g., window washer
322  DF  .~.~.~> Nozzles

DEFINITION

Classification: 15/320

(under subclass 300) Cleaning apparatus having means to apply liquid and/or particulate or comminuted solid cleaning material to the work.

(1) Note. Many of these devices pick up the liquid or other cleaning material by air draft means, such pickup being the only air draft contact with the work.

SEE OR SEARCH CLASS

451, Abrading,

75+, for sandblast apparatus.