A.W. Faber-Castel U.S.A.

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Cleveland, OH, US

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Information Patent Grant
Double-sided magnet with graphical image on each side
- Patent number 6,484,428
- Issue date Nov 26, 2002
- A.W. Faber-Castel U.S.A.
- Evelyn Greenwald
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

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