US PATENT SUBCLASS 83 / 494
.~.~.~ And means to change speed of rotation
Current as of:
June, 1999
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83 /
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CUTTING
469
DF
ROTATABLE DISC TOOL PAIR OR TOOL AND CARRIER
{11}
491
DF
.~ Means to rotate or oscillate tool {1}
492
DF
.~.~ Including means to rotate both elements of tool pair {2}
494
.~.~.~ And means to change speed of rotation
DEFINITION
Classification: 83/494
(under subclass 492) Device provided with means to alter the rate of rotation of one or both of the cutters.