Information device

Details Information device Information device

1988-05-09

1990-02-27

Schwartz, Pamela R.

Stock material or miscellaneous articles

Article having latent image or transformation

8115, 428195, 428199, 428690, 428913, B41M 500

Patent

active

049045075

ABSTRACT:
An information device comprising a substrate having applied thereto:

REFERENCES:
patent: 4218217 (1980-08-01), Bedd, Jr.

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