Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F21
LIGHTING
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F21W
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
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2131/00
Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
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F21W2131/40
Lighting for industrial, commercial, recreational or military use
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F21W2131/405
for shop-windows or displays
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