US PATENT SUBCLASS 455 / 67.7
.~.~ With indication (e.g., visual or voice signalling, etc.)

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

39  DF  TRANSMITTER AND RECEIVER AT SEPARATE STATIONS {14}
67.1  DF  .~ With measuring, testing, or monitoring of system or part {6}
67.7.~.~ With indication (e.g., visual or voice signalling, etc.)

DEFINITION

Classification: 455/67.7

With indication (e.g., visual or voice signalling, etc.):

(under subclass 67.1) Subject matter having means for making a condition pertaining to the testing or measuring of the system perceptible to a human operator.

SEE OR SEARCH CLASS

340, Communications: Electrical,

539, for generic condition indicating system over radio link.