US PATENT SUBCLASS 315 / 5.19
.~.~.~.~.~ By same path and/or to same aperture

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}
5.18  DF  .~.~.~.~ Ray returns to the hollow device; e.g., reflex type {1}
5.19.~.~.~.~.~ By same path and/or to same aperture {1}
5.21  DF  .~.~.~.~.~.~> Device tunable {1}

DEFINITION

Classification: 315/5.19

(under subclass 5.18) Subject matter wherein the ray in returning to the hollow device retraces the path followed in leaving the device, and/or wherein the ray reenters the hollow device through the same aperture as it left the device.