US PATENT SUBCLASS 148 / 303
.~.~.~ Copper containing
Current as of:
June, 1999
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148 /
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METAL TREATMENT
400
DF
STOCK
{20}
300
DF
.~ Magnetic {7}
301
DF
.~.~ Rare earth and transition metal containing {2}
303
.~.~.~ Copper containing
DEFINITION
Classification: 148/303
Copper containing:
(under subclass 301) Stock material which additional contains copper.