US PATENT SUBCLASS 379 / 365
.~.~.~ Specified switching contact (e.g., contact spring)

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

350  DF  SUPERVISORY OR CONTROL LINE SIGNALLING {5}
352  DF  .~ Substation originated {8}
362  DF  .~.~ Pulse signal generator (e.g., rotary dial) {5}
365.~.~.~ Specified switching contact (e.g., contact spring)

DEFINITION

Classification: 379/365

Specified switching contact (e.g., contact spring):

(under subclass 362) Subject matter including structure of the electrical switching element.

(1) Note. Included herein are contact spring arrangements.