US PATENT SUBCLASS 257 / 82
.~.~.~ Discrete light emitting and light responsive devices

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

79  DF  INCOHERENT LIGHT EMITTER STRUCTURE {10}
80  DF  .~ In combination with or also constituting light responsive device {3}
81  DF  .~.~ With specific housing or contact structure {1}
82.~.~.~ Discrete light emitting and light responsive devices

DEFINITION

Classification: 257/82

Discrete light emitting and light responsive devices:

(under subclass 81) Subject matter wherein the device with a specific housing or contact structure contains separate light emitting and light responsive elements.