Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Method of use – kit – or combined with marking instrument or...
Patent
1990-03-22
1992-07-14
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Method of use, kit, or combined with marking instrument or...
503200, 503205, B41M 528
Patent
active
051302900
ABSTRACT:
Disclosed are a water-sensitive coloring sheet comprising:
REFERENCES:
patent: 4170483 (1979-10-01), Shackle et al.
Hess Bruce H.
Kanzaki Paper Manufacturing Co. Ltd.
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