US PATENT SUBCLASS 423 / 275
.~ Additive contains metal, boron, or silicon
Current as of:
June, 1999
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423 /
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CHEMISTRY OF INORGANIC COMPOUNDS
265
DF
WITH ADDITIVE
{7}
275
.~ Additive contains metal, boron, or silicon
DEFINITION
Classification: 423/275
(under subclass 265) Products or processes in which the substance is a metal, boron or silicon, or a compound thereof.