US PATENT SUBCLASS 327 / 600
.~.~.~ Beam tube structure

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

524  DF  SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM {22}
598  DF  .~ With particular tube structure {2}
599  DF  .~.~ Vacuum tube type {1}
600.~.~.~ Beam tube structure

DEFINITION

Classification: 327/600

Beam tube structure:

(under subclass 599) Subject matter including a space discharge device which contains and controls a narrow electron stream.

SEE OR SEARCH THIS CLASS, SUBCLASS:

301, for rectangular or pulse waveform generation with electron beam type tube.

SEE OR SEARCH CLASS

250, Radiant Energy,

281, for methods and apparatus for the ionic separation or analysis of material (e.g., mass spectrometer), subclass 306 for the inspection of solids or liquids by charged particles (e.g., electron microscopes), subclasses 440.1+ for irradiated object supports of the charged particle inspection type, and subclasses 492.1+ for the irradiation of objects or materials, generally.

313, Electric Lamp and Discharge Devices,

62, for cyclotron structure, subclasses 299, 359, and 364 for beam tube structures, and subclasses 359.1+ for the structure of positive ion accelerators. 315, Electric Lamp and Discharge Devices: Systems,

3, for beam tube and circuit element structure.