US PATENT SUBCLASS 76 / 81.8
.~.~ Including nonplanar working surface
Current as of:
June, 1999
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76 /
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METAL TOOLS AND IMPLEMENTS, MAKING
*
DD
TOOL SHARPENERS
{4}
81
DF
.~ Stropping devices {5}
81.8
.~.~ Including nonplanar working surface
DEFINITION
Classification: 76/81.8
(under subclass 81) Device wherein the working surface of the sharpening device is maintained in a condition other than flat.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81.1, through 81.7, for other stropping devices having a nonplanar working surface.