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Schramm, R.; Höhne, M.: Patentdatenbanken und Patentlieferdienst im Internet : Thüringer Patentnetz versorgt die Industrie (2000) 6.68

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Field: Patentinformation

Schramm, R.: Patentinformation (2004) 6.68

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Field: Patentinformation
Title: Patentinformation