US PATENT SUBCLASS 15 / 93.2
.~.~ Coke oven cleaner

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

3  DF  MACHINES {11}
93.1  DF  .~ Scraping {3}
93.2.~.~ Coke oven cleaner

DEFINITION

Classification: 15/93.2

Coke oven cleaner:

(under subclass 93.1) Subject matter including means for scraping the interior or part of a heating chamber used for the preparation of coke from coal.