Sheet containing contour-dependent directional image and method

Details Sheet containing contour-dependent directional image and method Sheet containing contour-dependent directional image and method

1986-12-19

1987-12-22

Kittle, John E.

Stock material or miscellaneous articles

Composite

428916, 430 10, 430945, 383 5, 206807, B32B 904, G03C 300, B65D 3314

Patent

active

047146567

ABSTRACT:
A sheet having a set of axial markings viewable as a contour-dependent, directional image. The image is intact only when the sheet is in substantially a predetermined contour and viewed within a predetermined conical field of view. Also a method for forming such sheets.

REFERENCES:
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patent: 4200875 (1980-04-01), Galanos
patent: 4446979 (1984-05-01), Goch
patent: 4457437 (1984-07-01), Heath
patent: 4474304 (1984-10-01), Jacobs
patent: 4480749 (1984-11-01), Lauris et al.

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