The other was to coat a non-metallic tape with a magnetic coating.
2.
Other personalised security elements include a metallic tape running along the reverse of the card into which the holder's name is laser engraved, and a machine readable zone.
3.
He placed the work on wire in the Research Department of Brush Development Company, and contracted with Battelle Memorial Institute, Columbus, Ohio, for work on the development of a coated non-metallic tape.
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