Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
Inventor
active
Foundry molding compositions and process
Foundry moulding composition
Foundry moulding composition
Foundry moulds and cores
Foundry moulds and cores
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Profile ID: LFUS-PAI-P-265633