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Expired
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Frederick William Dullingham
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Individual
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Individual
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Publication of GB191509697ApublicationCriticalpatent/GB191509697A/en
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
F21V17/06—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the lampholder
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Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
GB191509697D1915-07-031915-07-03Improvements in Shade Carrying Electric Lamp Holders.
ExpiredGB191509697A
(en)