US PATENT SUBCLASS 72 / 106
.~.~.~.~ And circumferentially spaced, work-engaging elements

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

67  DF  BY USE OF TOOL ACTING DURING RELATIVE ROTATION BETWEEN TOOL AND WORK ABOUT INTERNAL CENTER (E.G., GYRATING OR ROTATING TOOL) {10}
80  DF  .~ During rotation of work {12}
102  DF  .~.~ Using non-cylindrical rotating tool {5}
105  DF  .~.~.~ And cooperating, complementary tool {1}
106.~.~.~.~ And circumferentially spaced, work-engaging elements

DEFINITION

Classification: 72/106

And circumferentially spaced, work-engaging elements:

(under subclass 105) Subject matter including an additional member touching the work at a point on the work periphery

that is angularly spaced about the work-axis from the cooperating tools, which additional member deforms or supports the work.