(under subclass 167) Subject matter wherein the cutter has a continuous, closed, usually circular, cutting edge which cooperates with (1) a die element which receives the closed circular cutting edge, (2) a solid anvil-like surface element to effect a cut, or (3) no other element to effect or cut.
(1) Note. A punch removes material from the surface it is passed through. Patents in this subclass disclose the punching of arteries for the purpose of making a by-pass connection as well as nose punches which punch out a hole for placing a ring in an animal's nose.
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133, for a punch used to remove a hair plug for transplantation to another part of the scalp.
