US PATENT SUBCLASS 408 / 705
DRILLING DEEP HOLES

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


408 /   HD   CUTTING BY USE OF ROTATING AXIALLY MOVING TOOL

705DRILLING DEEP HOLES

DEFINITION

Classification: 408/705

(under the class definition) A step or apparatus particularly adapted to cut openings into work, which openings have an exceptionally high ratio of depth to diameter.