US PATENT SUBCLASS 455 / 339
.~.~.~ Band pass filter

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}
334  DF  .~ With particular receiver circuit {6}
338  DF  .~.~ Coupling or decoupling between stages {2}
339.~.~.~ Band pass filter

DEFINITION

Classification: 455/339

Band pass filter:

(under subclass 338) Systems wherein the coupling means comprises a band pass filter.

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks,

165, 212 for wave filters comprised of passive elements.