Title: Optically coded document and method of making same

Abstract: A document is disclosed, which comprises an information carrier in which information is recorded as optical markings. The information carrier has a shape-memorizing capability actuated by supplying energy, such as heat, which changes the shape of the information carrier and the optical markings.

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Inventors: Greenaway, David L. (Oberwil, CH)

Application Number: 848871
Filing Date: 1977-11-07
Publication_date: 1979-08-07
Assignee: LGZ Landis & Gyr Zug AG (Zug, CH)
Primary Class(es): 283/67 283/85, 283/95, 356/71
Other Classes:
US Patent Ref:
Other Refs: 574144

Mar, 1976	CH

Primary Examiner: Abercrombie, Willie G.
Assistant Examiner:
Attorney: Morgan, Finnegan, Pine, Foley & Lee