US PATENT SUBCLASS 370 / FOR 192
.~.~ Electron beam switching device (370/115)

Current as of: June, 1999
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370 /   HD   MULTIPLEX COMMUNICATIONS

FOR 135  DF  TIME DIVISION (370/77) {14}
FOR 189  DF  .~ Multiplexers/distributors (hierarchy and level) (370/112) {3}
FOR 192.~.~ Electron beam switching device (370/115)

DEFINITION

Classification: 370/FOR.192

Electron beam switching device:

Foreign art collection including subject matter utilizing an electron beam switching device such as a cathode-ray tube with target electrode for multiplexing or distribution.