Bi-fitted incandescent electric light bulbs with internal electr

Electric lamp and discharge devices – With envelope – Having base and connector

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339165, 339 50R, 339 47R, 313315, 313 1, 313 3, 362184, H01J 548, H01J 550

Patent

active

044880820

ABSTRACT:
An incandescent electric light bulb is provided with two fittings, typically two opposed screw-threaded bases, each with two terminals. The bulb is provided with internal parallel conductors between corresponding terminals of the two fittings. One or more incandescent filaments is or are connected between the conductors within the bulb. Accordingly several of the bulbs may be connected fitting-to-fitting, electrically in parallel, with or without inter-bulb connectors, with no need for externally wired sockets between adjoining bulbs. Various fittings, connectors and supports are described.

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