US PATENT SUBCLASS 361 / 48
.~.~.~ With more than three wires

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

1  DF  SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32}
42  DF  .~ Ground fault protection {5}
47  DF  .~.~ In a polyphase system {1}
48.~.~.~ With more than three wires

DEFINITION

Classification: 361/48

With more than three wires:

(under subclass 47) Subject matter wherein the polyphase system comprises more than three wires (e.g., a grounded wye-polyphase with a neutral conductor).

SEE OR SEARCH THIS CLASS, SUBCLASS:

108, for related subject matter with specific transmission line.