US PATENT SUBCLASS 337 / 271
.~.~.~.~.~ Part of or structurally adapted for use with particular socket means

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
142  DF  .~ Fusible element actuated {15}
227  DF  .~.~ Fuse link carrier or holder {2}
255  DF  .~.~.~ Plug {5}
270  DF  .~.~.~.~ Structure or composition of material {2}
271.~.~.~.~.~ Part of or structurally adapted for use with particular socket means

DEFINITION

Classification: 337/271

(under subclass 270) Subject matter wherein the plug structure is significantly recited as comprising structural features whereby the plug is restricted to use only with a particularly designed socket having cooperative or complementary parts adapted for mating connection with the plug.

SEE OR SEARCH CLASS

439, Electrical Connectors,

660+, for an electrical connector comprising a plural-contact plug or receptacle.