US PATENT SUBCLASS 378 / 134
.~.~ With plural cathodes or heaters

Current as of: June, 1999
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378 /   HD   X-RAY OR GAMMA RAY SYSTEMS OR DEVICES

119  DF  SOURCE {3}
121  DF  .~ Electron tube {12}
134.~.~ With plural cathodes or heaters

DEFINITION

Classification: 378/134

With plural cathodes or heaters:

(under subclass 121) Subject matter including more than one cathode or heater within the tube.

SEE OR SEARCH THIS CLASS, SUBCLASS:

124, for tubes with plural targets or anodes.