US PATENT SUBCLASS 337 / 7
.~.~.~ Multiphase of multipole

Current as of: June, 1999
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337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

2  DF  WITH SEPARATE DISTINCT DIVERSE ART-TYPE SWITCHING DEVICE (E.G., FLUID- OR MECHANICAL-ACTUATED) {2}
4  DF  .~ Fusible element device with other {4}
6  DF  .~.~ With automatic circuit-interrupting device {1}
7.~.~.~ Multiphase of multipole

DEFINITION

Classification: 337/7

(under subclass 6) Subject matter wherein the other art switching device is further described as comprising a plurality of individual conductors which comprise the conductors of a polyphase or plural conductor transmission line.

(1) Note. See the note to the definition of subclass 6 above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

45+, for bimetallic element operated electrothermal switches of the multipole or polyphase type with manual control.

146, for fusible element actuated electrothermal switches of the multipole or polyphase type.