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Michael Blumenschein
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Bensheim, DE
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Patents Grants
last 30 patents
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Patent Grant
Photovoltaic element
Patent number
6,420,646
Issue date
Jul 16, 2002
Roehm GmbH & Co KG
Volker Benz
H01 - BASIC ELECTRIC ELEMENTS
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last 30 patents
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Patent Application
Photovoltaic element
Publication number
20010015220
Publication date
Aug 23, 2001
ROEHM GMBH & CO. KG
Volker Benz
H01 - BASIC ELECTRIC ELEMENTS