US PATENT SUBCLASS 347 / 162
.~.~ Including driving circuitry

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

111  DF  ELECTRIC MARKING APPARATUS OR PROCESSES {3}
159  DF  .~ By electrical discharge (e.g., spark) {3}
162.~.~ Including driving circuitry

DEFINITION

Classification: 347/162

Including driving circuitry:

(under subclass 159) Subject matter including means for controlling a current applied to the recording head or marker.