US PATENT SUBCLASS 178 / 82 B
.~.~ With electromagnet

Current as of: June, 1999
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178 /   HD   TELEGRAPHY

79  DF  CODE TRANSMITTERS {5}
82 R  DF  .~ Automatic dot {2}
82 B.~.~ With electromagnet

Unofficial Alpha Subclasses: R B A

DEFINITION

Classification: 178/82

(under subclass 79) Transmitters having means for producing one or more dots, as may be desired, and automatically as long as a key or lever is held in one position and a dash of desired length by placing or holding it in another position, the automatic dot means comprising a vibrator of some type.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47, for other types of vibrating transmitters or receivers.