US PATENT SUBCLASS 427 / 112
.~.~ Carbon filament

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

58  DF  ELECTRICAL PRODUCT PRODUCED {21}
111  DF  .~ Filament for lamp or tube {1}
112.~.~ Carbon filament

DEFINITION

Classification: 427/112

(under subclass 111) Processes wherein the filament comprises elemental carbon.

SEE OR SEARCH THIS CLASS, SUBCLASS:

113+, for processes of coating a carbon base which is not a filament.

226+, for processes of carbonizing by heat decomposition.