US PATENT SUBCLASS 346 / 150.2
.~ By electrical discharge (e.g., spark or electroerosion)

Current as of: June, 1999
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346 /   HD   RECORDERS

150.1  DF  ELECTRIC RECORDING {2}
150.2.~ By electrical discharge (e.g., spark or electroerosion)

DEFINITION

Classification: 346/150.2

By electrical discharge (e.g., spark or electroerosion):

(under subclass 150.1) Subject matter wherein the phenomenon is recorded by dielectric breakdown.

(1) Note. The dielectric breakdown may cause an electrical discharge from a stylus onto a medium by direct contact or through an air gap.

SEE OR SEARCH CLASS

347, Incremental Printing of Symbolic Information,

159+, for electrical discharge marking apparatus and processes.