US PATENT SUBCLASS 451 / 41
.~ Glass or stone abrading

Current as of: June, 1999
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451 /   HD   ABRADING

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

DEFINITION

Classification: 451/41

Glass or stone abrading:

(under subclass 28) Method of grinding glass or natural or artificial stone.

SEE OR SEARCH CLASS

65, Glass Manufacturing,

37, for a process of lens making involving fusion bonding of glass and grinding, subclass 61 for a process of glassworking combined with grinding, and subclass 181 for glassworking or

treating apparatus combined with grinding means.