US PATENT SUBCLASS 44 / 501
.~ Treated to reduce spontaneous ignition

Current as of: June, 1999
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44 /   HD   FUEL AND RELATED COMPOSITIONS

500  DF  PARTICULATE (E.G., POWDERED, ETC.) {5}
501.~ Treated to reduce spontaneous ignition

DEFINITION

Classification: 44/501

Treated to reduce spontaneous ignition:

(under subclass 500) Subject matter in which the fuel product mass has a reduced tendency to burst into flame or otherwise burn without the application or external energy.