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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B32B2250/24
All layers being polymeric
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B32B2250/246
All polymers belonging to those covered by groups B32B27/32 and B32B27/30
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