US PATENT SUBCLASS 451 / 43
.~.~.~ Edging

Current as of: June, 1999
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451 /   HD   ABRADING

28  DF  ABRADING PROCESS {19}
41  DF  .~ Glass or stone abrading {2}
42  DF  .~.~ Lens {1}
43.~.~.~ Edging

DEFINITION

Classification: 451/43

Edging:

(under subclass 42) Method directed to grinding or polishing a circumferential margin of a lens.