US PATENT SUBCLASS 200 / 51.14
.~ Screw-coupling

Current as of: June, 1999
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200 /   HD   ELECTRICITY: CIRCUIT MAKERS AND BREAKERS

51 R  DF  COMBINED WITH OR ACTUATED BY CONNECTOR COUPLING {10}
51.14.~ Screw-coupling {3}
51.15  DF  .~.~> Pull-chain switch
51.16  DF  .~.~> Push-button switch
51.17  DF  .~.~> Rotatable-key switch

DEFINITION

Classification: 200/51.14

(under subclass 51) Devices in which one of the coupling members is screwed into the other to effect coupling thereof.

SEE OR SEARCH CLASS

439, Electrical Connectors,

661+, for a plural-contact coupling part having a screw-thread-coupling contact, and see the search notes appended thereto for the location of other screw coupling type electrical connectors, per se.