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Class Information
Number: 451/217
Name: Abrading > Machine > Rotary tool > Rotary cylinder > Reciprocating work holder > Rectilinear > Rocking > Hob, tap, or fluted thread
Description: Abrading machine which grinds teeth, grooves, or threads.

Patents under this class:

Patent Number Title Of Patent Date Issued
5906537 Five spindle fluting machine May. 25, 1999
5065549 Method and apparatus for manufacturing K-files and reamers Nov. 19, 1991
4999952 Method and apparatus for manufacturing K-files and reamers Mar. 19, 1991
4813188 Method of shaping workpieces especially forming undercut archimedean spirals Mar. 21, 1989
4358911 Machine for relief grinding tap threads Nov. 16, 1982
4202222 Method for preparation of spherical hob for generation of gear May. 13, 1980
4075790 Screw thread tap grinding with automatic loading means Feb. 28, 1978
4016680 Sharpener for twist drills including grinding wheel dressing means Apr. 12, 1977
3994099 Screw thread tap grinding Nov. 30, 1976

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