US PATENT SUBCLASS 408 / 703
TREPANNING


Current as of: June, 1999
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408 /   HD   CUTTING BY USE OF ROTATING AXIALLY MOVING TOOL

703TREPANNING


DEFINITION

Classification: 408/703

(under the class definition) A step or apparatus particularly for removing material from the work by forming an annular trench therein, which trench is made progressively deeper as the tool proceeds.

SEE OR SEARCH THIS CLASS, SUBCLASS:

204+, for a tool, per se, for performing an operation of the type of this subclass.