US PATENT SUBCLASS 405 / 264
.~.~ Organic

Current as of: June, 1999
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405 /   HD   HYDRAULIC AND EARTH ENGINEERING

258  DF  EARTH TREATMENT OR CONTROL {5}
263  DF  .~ Chemical {2}
264.~.~ Organic {1}
265  DF  .~.~.~> Bituminous

DEFINITION

Classification: 405/264

Organic:

(under subclass 263) Method or apparatus wherein the composition of matter contains carbon.