US PATENT SUBCLASS 178 / 27
.~.~.~ Selectors

Current as of: June, 1999
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178 /   HD   TELEGRAPHY

2 R  DF  SYSTEMS {21}
23 R  DF  .~ Printing {8}
25  DF  .~.~ Page {3}
27.~.~.~ Selectors

DEFINITION

Classification: 178/27

(under subclass 25) Page printing systems in which "selectors" or devices for operating particular printing elements are selectively actuated by the signal impulses or currents and employed either at the sending or receiving

station.

(1) Note. Rotary distributors or "sun-flowers" are not included herein.

SEE OR SEARCH CLASS

340, Communications: Electrical,

825+, for nontelegraph selective systems, analogous to the selective systems utilized in telegraphy but restricted to the communication of a limited amount of information or control.

381, Electrical Audio Signal Processing Systems and Devices, 355+, for telephone call transmitters.