Method for production of and distinction between combined validi

Details Method for production of and distinction between combined validi Method for production of and distinction between combined validi

1975-05-15

1976-06-08

Kimlin, Edward C.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 41, 96 42, 96 81, 96 27R, 283 6, 283 7, 283 8R, 283 8B, 40 2R, 40 22, 40 5, 350167, 352 38, 352 46, G03C 900, G03C 504

Patent

active

039619567

ABSTRACT:
A method production of a composite photograph containing at least two images, i.e. a mark image and a holder image, and a method for distinguishing images in said composite photograph, said photograph being composed of alternate strips containing elements of the holder identify photograph and strips containing elements of validity check mark photograph, all strips being disposed at equal intervals from one another, and said photograph of the holder being hidden by said check mark photograph when viewed normally, and to be discernible only when viewed through a lenticular lens.

REFERENCES:
patent: 834048 (1906-10-01), Deeks
patent: 3300308 (1967-01-01), Jemseby
patent: 3332775 (1967-07-01), Mandler
patent: 3675948 (1972-07-01), Wicker
patent: 3784380 (1974-01-01), Compare

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