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Expired
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William Humphrey Wheatley
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Individual
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Individual
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Publication of GB189729379ApublicationCriticalpatent/GB189729379A/en
29,379. Wheatley, W. H., [Allgemeine Elektricitõts Gesellschaft]. Dec. 11. Drawings to Specification. Incandescent lamps.-Capped lamps differing in candle power, voltage, current consumption, or otherwise, are made with contacts of different heights, or to fit holders of different heights and diameters, in order that only one kind of lamp may be used in any particular holder. The invention is applicable to bayonet or screw capped lamps and holders of ordinary construction.
GB189729379D1897-12-111897-12-11Uninterchangeable Electric Incandescence Lamps.
ExpiredGB189729379A
(en)
Improvements in and relating to Sleeves or Sockets, chiefly designed for Simultaneously Connecting Globes, Reflectors, and the like to Electrical Incandescent Lamps.