US PATENT SUBCLASS 400 / 479.2
.~.~.~ Electromagnetic-responsive switch

Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

472  DF  KEY-BOARD OR KEY LEVER-ACTUATING MECHANISM {12}
477  DF  .~ Including means generating a signal for type selecting or other typing function {2}
479  DF  .~.~ Via electrical component (e.g., switch, stylus, etc.) in or with key-board {2}
479.2.~.~.~ Electromagnetic-responsive switch

DEFINITION

Classification: 400/479.2

Electromagnetic-responsive switch:

(under subclass 479) Subject matter wherein the device that completes the electric circuit is one that embodies the electrical phenomenon known as "magnetism" that is energized by electricity.