Product presenting different artistic images in the presence and

Details Product presenting different artistic images in the presence and Product presenting different artistic images in the presence and

1990-03-14

1992-01-28

Seidleck, James J.

Stock material or miscellaneous articles

Article having latent image or transformation

156250, 427157, 427411, 428 33, 428203, 428690, B44F 110, B05D 506

Patent

active

050843095

ABSTRACT:
The invention includes a product and a fabrication method for generating one image in the presence of ambient light and a second different image in the absence of ambient light. This invention can use phosphorescent material to form one of the images. This invention is particularly related to puzzles or novelty artwork for children.

REFERENCES:
patent: 4211813 (1980-07-01), Grauisse et al.
patent: 4652464 (1987-03-01), Ludlum et al.

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