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Beatriz E. Katz
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Buenos Aires, AR
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last 30 patents
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Patent Grant
Control electromagnet
Patent number
4,999,559
Issue date
Mar 12, 1991
Alternative Energy Research Center Inc.
Beatriz E. Katz
G08 - SIGNALLING
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Patent Grant
Method and apparatus for displaying graphic and alphanumeric data
Patent number
4,940,973
Issue date
Jul 10, 1990
Alternative Energy Research Center Inc.
Beatriz E. Katz
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS