US PATENT SUBCLASS 313 / 562
.~ Gas or vapor device type

Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

553  DF  WITH GETTER {8}
562.~ Gas or vapor device type

DEFINITION

Classification: 313/562

Gas or vapor device type:

(under subclass 553) Subject matter wherein the getter is used in a gas or vapor type tube.

SEE OR SEARCH THIS CLASS, SUBCLASS:

553, for a vacuum tube getter.