Electric light bulb saving device

Electric lamp and discharge devices: systems – Plural series connected load devices – Christmas lights

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313 1, 315 66, 315122, H05B 3700

Patent

active

045969442

ABSTRACT:
In order to prolong the life of incandescent electric light bulbs, an arrangement is provided which consists of two bulbs, one of which constitutes a resistance for the second one.
The lamp holder which accommodates the two bulbs comprises two sockets into each of which the base of one bulb is inserted, the two sockets being interconnected in series.

REFERENCES:
patent: 777666 (1904-12-01), Dale
patent: 780087 (1905-01-01), Burt
patent: 814162 (1906-03-01), Phelps
patent: 931724 (1909-08-01), Benjamin
patent: 1873309 (1932-08-01), Doane
patent: 2042963 (1936-06-01), Rentschaler et al.
patent: 2306559 (1942-12-01), Pearson
patent: 3319115 (1967-05-01), Smith
patent: 4425605 (1984-01-01), Cheng

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