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
Landscapes
Engineering & Computer Science
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General Engineering & Computer Science
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Financial Or Insurance-Related Operations Such As Payment And Settlement
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Diaphragms For Electromechanical Transducers
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Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation
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