US PATENT SUBCLASS 340 / 333
.~ With specific power supply (e.g., power substitution)

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

286.01  DF  SYSTEMS {24}
333.~ With specific power supply (e.g., power substitution)

DEFINITION

Classification: 340/333

(under subclass 286.01) Subject matter having significantly recited or significant power supply systems.

(1) Note. The system, for example, may be provided with means to substitute an auxiliary source of power if the regular source fails.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

64+, for emergency power systems of general application.