US PATENT SUBCLASS 409 / 66
.~.~ Process

Current as of: June, 1999
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409 /   HD   GEAR CUTTING, MILLING, OR PLANING

64  DF  MILLING {29}
65  DF  .~ Thread or helix generating {9}
66.~.~ Process

DEFINITION

Classification: 409/66

Process:

(under subclass 65) Method of forming a thread or helix.

SEE OR SEARCH CLASS

451, Abrading,

48, for a process of grinding a thread or helical surface.