US PATENT SUBCLASS 423 / 447.5
.~.~.~.~ With metal, metal compound, or phosphorus compound

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

414  DF  CARBON OR COMPOUND THEREOF {3}
445 R  DF  .~ Elemental carbon {7}
447.1  DF  .~.~ Fiber, fabric, or textile {7}
447.4  DF  .~.~.~ Prior treatment before carbonization (except with gaseous oxygen) {1}
447.5.~.~.~.~ With metal, metal compound, or phosphorus compound

DEFINITION

Classification: 423/447.5

(under subclass 447.4) Processes wherein the treating substance is a metal, a metal containing compound or a phosphorus containing compound.