Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F21
LIGHTING
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F21V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
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21/00
Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
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F21V21/10
Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
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F21V21/12
capable of being elongated or shortened by the insertion or removal of intermediate pieces
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