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Expired
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Percy Richard Julius Willis
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Individual
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Individual
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Application grantedgrantedCritical
Publication of GB191128586ApublicationCriticalpatent/GB191128586A/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
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Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
GB191128586D1911-12-191911-12-19Improvements in Lamp Chimneys, Globes and the like, and in Means for Holding them in Position.
ExpiredGB191128586A
(en)