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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19/00
Other details of constructional parts for finishing work on buildings
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E04F19/08
Built-in cupboards; Masks of niches; Covers of holes enabling access to installations
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E04F19/083
Covers with fixing means providing for snap locking
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