US PATENT SUBCLASS 347 / 204
.~.~ Heat resistance layer

Current as of: June, 1999
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347 /   HD   INCREMENTAL PRINTING OF SYMBOLIC INFORMATION

171  DF  THERMAL MARKING APPARATUS OR PROCESSES {20}
200  DF  .~ Specific resistance recording element type {8}
204.~.~ Heat resistance layer

DEFINITION

Classification: 347/204

Heat resistance layer:

(under subclass 200) Subject matter comprising chemical composition of the heat generating layer.