US PATENT SUBCLASS 44 / 252
.~.~ Free metal-containing

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

250  DF  FLAMELESS OR GLOWLESS {1}
251  DF  .~ Activatable by or containing water {1}
252.~.~ Free metal-containing {1}
253  DF  .~.~.~> With organic or second elemental material

DEFINITION

Classification: 44/252

Free metal-containing:

(under subclass 251) Subject matter which contains a metal in elemental form, usually in finely divided condition.