US PATENT SUBCLASS 379 / 366
.~.~.~ With detail of dial return mechanism (e.g., driving spring, speed governor)

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}
366.~.~.~ With detail of dial return mechanism (e.g., driving spring, speed governor)

DEFINITION

Classification: 379/366

With detail of dial return mechanism (e.g., driving spring, speed governor):

(under subclass 362) Subject matter including structure of the mechanical arrangement for returning the dial to its original position.

(1) Note. Included are driving spring arrangements.