US PATENT SUBCLASS 324 / 379
.~ With analysis of displayed waveform

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

378  DF  INTERNAL-COMBUSTION ENGINE IGNITION SYSTEM OR DEVICE {12}
379.~ With analysis of displayed waveform

DEFINITION

Classification: 324/379

With analysis of displayed waveform:

(under subclass 378) Subject matter having a cathode-ray tube (CRT) display or a drive circuit for a CRT responsive to an electrical ignition system to display the waveform generated

by the ignition system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

394, for the use of a CRT in the testing of spark plugs in situ.