US PATENT SUBCLASS 368 / 79
.~.~ Optical


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

62  DF  CHRONOLOGICAL {12}
76  DF  .~ With mechanical or electromechanical driven display {4}
79.~.~ Optical


DEFINITION

Classification: 368/79

Optical:

(under subclass 76) Subject matter wherein the time display consists of means for projecting, reflecting, or transmitting electrically produced visible radiation from or through time representative indicia.

SEE OR SEARCH THIS CLASS, SUBCLASS:

29+, for timepieces with calendar electro-optical indicators.

67, for timepieces with illumination aid for reading the display.

82+, for electronic timepieces with electro-optical displays.

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

SEE OR SEARCH CLASS

116, Signals and Indicators, 200+, especially 202 and 250 for indicators with visual light signals.

340, Communications: Electrical,

815.4+, for electrical visual-signalling means with indicator means.

345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems,

1+, for visual display systems with selective electrical control.

362, Illumination,

23+, for artificial-light means for dials.