Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
Inventor
active
Aromatic polymers having phenylene groups linked by oxygen atoms
Input/output controller for a data processing system
Manufacture of aromatic polymers containing ketone and sulphone
Production of aromatic polyethers
Sail apparatus for a land vehicle
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Profile ID: LFUS-PAI-P-1071336