Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Heavy metal reactant
Patent
1989-11-17
1991-06-18
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Heavy metal reactant
427151, 503212, 503216, 503217, 503218, 503223, B41M 5136
Patent
active
050249878
ABSTRACT:
Pressure-sensitive reactive recording material containing
REFERENCES:
patent: 4403791 (1983-09-01), Schmidt et al.
Berneth Horst
Botta Artur
Jabs Gert
Klug Gunter
Bayer Aktiengesellschaft
Hess Bruce H.
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