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
Ball-point pen cap
Ball-point pen with back flow stop
Clicking-type writing implement
Clicking-type writing implement
Composition containing a powder of an inorganic material
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Profile ID: LFUS-PAI-P-136516