Coextrusion of periodically modulated structures

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United States of America

PATENT NO 12070887
SERIAL NO

17495089

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Abstract

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A method for manufacturing a foil having a variable strip geometry, which makes it possible to supply a foil that bears a complex security feature. Varying of the geometry is effected by means of a movement of a position-variable distributor rail of the extruder.

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Patent Owner(s)

Patent OwnerAddress
GIESECKE+DEVRIENT EPAYMENTS GMBH81677 MÜNCHEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Riedl, Josef Attenkirchen, DE 39 311

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