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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2201/00
Joining sheets or plates or panels
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E04F2201/04
Other details of tongues or grooves
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E04F2201/044
with tongues or grooves comprising elements which are not manufactured in one piece with the sheets, plates or panels but which are permanently fixedly connected to the sheets, plates or panels, e.g. at the factory
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E04F2201/048
wherein the elements are made of fibres or chips, e.g. bonded with synthetic resins
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