US PATENT SUBCLASS 396 / 660
.~.~ Internally heated
Current as of:
June, 1999
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396 /
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PHOTOGRAPHY
658
DF
BURNISHING
{1}
659
DF
.~ Rotary burnishing surface {1}
660
.~.~ Internally heated
DEFINITION
Classification: 396/660
Internally heated:
(under subclass 659) Subject matter including means to raise the temperature of a rotary tool.
SEE OR SEARCH THIS CLASS, SUBCLASS:
, FOR 971, for a foreign art collection involving photos:graphic burnishing by a rotary machine which is internally heated.