Patent classifications
E
FIXED CONSTRUCTIONS
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E04
BUILDING
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E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
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11/00
Stairways, ramps, or like structures; Balustrades; Handrails
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E04F2011/1868
Miscellaneous features of handrails not otherwise provided for
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E04F2011/1876
Movable elements, e.g. against sunlight
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