Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B32
LAYERED PRODUCTS
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B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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2262/00
Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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