US PATENT SUBCLASS 72 / 93
.~.~.~.~ With means to adjust concave surface

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}
91  DF  .~.~ Caused by rotating tool and opposing concave surface {1}
92  DF  .~.~.~ Non-rotating concave surface {1}
93.~.~.~.~ With means to adjust concave surface

DEFINITION

Classification: 72/93

With means to adjust concave surface:

(under subclass 92) Subject matter including use of means to alter the position of the second tool relative to the roller-like tool.