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...
Patent
1993-08-19
1995-05-02
Michl, Paul R.
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...
524377, 524503, 524557, 524598, 523160, 523161, C08K 506, C09D 1110
Patent
active
054120217
ABSTRACT:
A water-base erasable ink composition for use in marking pens which comprises:
REFERENCES:
patent: 4935461 (1990-06-01), Nakamure
patent: 5009763 (1991-04-01), Imagawa
Asinovsky Olga
Michl Paul R.
Sakura Color Products Corporation
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