US PATENT SUBCLASS 368 / 226
.~ With luminous material


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

223  DF  DISPLAYS OR DISPLAY DEVICE DETAILS {5}
226.~ With luminous material


DEFINITION

Classification: 368/226

With luminous material:

(under subclass 223) Subject matter wherein the indicator means is, at least in part, comprised of a fluorescent, phosphoresent or radioactive substance.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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

SEE OR SEARCH CLASS

250, Radiant Energy,

462.1+, especially subclasses 463.1+, for self-luminous dials, pointers, gauges and bands; and subclasses 483.1+ for luminescent devices not classified elsewhere.

313, Electric Lamp and Discharge Devices,

483+, for electric lamp and discharge devices with luminescent solid or liquid material.