US PATENT SUBCLASS 455 / 322
.~.~.~.~ Plural common electrode

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


455 /   HD   TELECOMMUNICATIONS

130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
313  DF  .~ Frequency modifying or conversion {4}
318  DF  .~.~ With specified local oscillator structure or coupling {2}
321  DF  .~.~.~ In a single envelope or with common active element (e.g., autodyne) {1}
322.~.~.~.~ Plural common electrode

DEFINITION

Classification: 455/322

Plural common electrode:

(under subclass 321) Subject matter wherein the conversion means and local oscillator means are combined in a single electron tube having a plurality of separate control grids.