US PATENT SUBCLASS 368 / 29
.~ Electro-optical

Current as of: June, 1999
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368 /   HD   HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES

28  DF  WITH CALENDAR INDICATOR {7}
29.~ Electro-optical {1}
30  DF  .~.~> Liquid crystal display (i.e., LCD)

DEFINITION

Classification: 368/29

Electro-optical:

(under subclass 28) Subject matter wherein the timepiece display means is made from a material whose optical properties can be changed by an electrical signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

82+, for chronological timepieces with electro-optical display.

239+, for electro-optical displays for timepieces, per se.

250+, for electro-optical timepiece alarms.