US PATENT SUBCLASS 315 / 5.49
.~.~.~.~.~ Three hollow devices

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

1  DF  CATHODE RAY TUBE CIRCUITS {11}
3  DF  .~ Combined cathode ray tube and circuit element structure {2}
4  DF  .~.~ Inductor or distributed parameter-type inductive structure {2}
5  DF  .~.~.~ Ray passes in or through a hollow distributed parameter device {15}
5.39  DF  .~.~.~.~ Plural hollow devices {6}
5.49.~.~.~.~.~ Three hollow devices

DEFINITION

Classification: 315/5.49

(under subclass 5.39) Subject matter including at least three hollow distributed parameter devices with the ray passing through or in at least three of the devices.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5.45, for at least three hollow distributed parameter devices as above defined with feedback coupling between at least two of the devices.