US PATENT SUBCLASS 451 / 277
.~.~.~.~.~ Lens abrader

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
177  DF  .~ Rotary tool {3}
259  DF  .~.~ Rotary disk {10}
272  DF  .~.~.~ Reciprocating work holder {2}
276  DF  .~.~.~.~ Rocking {1}
277.~.~.~.~.~ Lens abrader

DEFINITION

Classification: 451/277

Lens abrader:

(under subclass 276) Abrading machine specifically disclosed

for forming the surface of an optical device made from glass, plastic, or other transparent material.

(1) Note. This subclass takes a device for lens surface polishing as well as one for lens generating.