Encodable retroreflective sheeting

Details Encodable retroreflective sheeting Encodable retroreflective sheeting

1976-02-09

1978-04-18

Cook, Daryl W.

Registers

Records

235488, G06K 1906

Patent

active

040853144

ABSTRACT:
Sheet material useful to form a coded retroreflective mark comprises a retroreflective base sheet and a cover film adhered over the base sheet and precut to form a plurality of removable sections. The cut sections are arranged in a predetermined pattern such that removal of different sections to expose the retroreflective sheeting under the sections provides different codes that may be read and distinguished by photoscanning equipment.

REFERENCES:
patent: 2407680 (1946-09-01), Palmquist et al.
patent: 2511953 (1950-06-01), Tallman
patent: 3190178 (1965-06-01), McKenzie
patent: 3705294 (1972-12-01), Kuehnle et al.
patent: 3743819 (1973-07-01), Kapsambelis et al.

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