Education and demonstration – Means for demonstrating apparatus – product – or surface... – Chalkboard or equivalent means having easily erasable surface
Patent
1995-05-25
1998-02-10
Jagannathan, Vasu
Education and demonstration
Means for demonstrating apparatus, product, or surface...
Chalkboard or equivalent means having easily erasable surface
523160, 523161, 523218, 260DIG38, 524315, 524321, 524389, 524475, 524563, 524564, B43L 100, C09D 1110
Patent
active
057162174
ABSTRACT:
A water base ink composition for writing on neon boards which comprises:
REFERENCES:
patent: 4954174 (1990-09-01), Imagawa
patent: 5004763 (1991-04-01), Imagawa
Imagawa Kiyotaka
Okuda Yasuji
Guamello John J.
Jagannathan Vasu
Miskin Howard C.
Sakura Color Products Corp.
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