US PATENT SUBCLASS 315 / 5.12
.~.~.~.~.~ Secondary emission passes through or in the hollow device


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}
5.11  DF  .~.~.~.~ With a secondary emission stage {1}
5.12.~.~.~.~.~ Secondary emission passes through or in the hollow device


DEFINITION

Classification: 315/5.12

(under subclass 5.11) Subject matter wherein the ray passing through or in the hollow device impinges on a secondary emission electrode to produce another ray which passes through or in the same device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5.18+, for a hollow distributed parameter device having a ray passing through or in, and returning to the device by other than secondary emission means.