US PATENT SUBCLASS 340 / 533
.~.~ Wired

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
531  DF  .~ With particular coupling link {3}
533.~.~ Wired {4}
534  DF  .~.~.~> Coded message {1}
536  DF  .~.~.~> Noninterfering
537  DF  .~.~.~> With impedance level coding
538  DF  .~.~.~> Combined with power line

DEFINITION

Classification: 340/533

Wired:

(under subclass 531) Subject matter with a transmitting means connected to indicating means by an arrangement of conductors.

(1) Note. To complete the search for this subject matter, the search should extend into the appropriate fields of classification of wired coupling means, such as Class 178, for Telegraphy; Class 379 for Telephonic Communications.