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1.	A patent system for the People's Republic of China : impressions from an official visit / Alfred Wittmann. Wittmann, Alfred, author. [Amsterdam, The Netherlands] : [Elsevier], 1980. English \| 15 \| Detailed record - Similar records
2.	Die internationale Patentklassifikation / Alfred Wittmann. Wittmann, Alfred, author. Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1973. English \| 28 \| Detailed record - Similar records
3.	Freitextrecherche und Sprachenbarriere : Brauchen wir eine Patentdatenbank in deutscher Sprache? / Alfred Wittmann. Wittmann, Alfred, author. München [Germany] : Mitteilungen der deutschen Patentanwèalte, 1984. German \| 43 \| Detailed record - Similar records
4.	Ablageorientierte und inhalterschliessende Dokumentation für die Patentrecherche / Alfred Wittmann. Wittmann, Alfred, author. Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1974. German \| 28 \| Detailed record - Similar records
5.	Reducing space requirements and floor load of paper search file in the German Patent Office / Alfred Wittmann. Wittmann, Alfred, author. [Amsterdam, The Netherlands] : [Elsevier], 1983. English \| 15 \| Detailed record - Similar records
6.	Steht uns eine Änderung der PCT-Minimum-Dokumentation bevor? / Alfred Wittmann. Wittmann, Alfred, author. Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1993. German \| 29 \| Detailed record - Similar records
7.	PATDPA : an online searchable patent database with display of patent drawing / Alfred Wittmann. Wittmann, Alfred, author. ; Tittlbach, G. [Amsterdam, The Netherlands] : [Elsevier], 1986. English \| 15 \| Detailed record - Similar records
8.	Wörterbuch Patentfachsprache / begründet von B. Klaften ; neu bearbeitet und erweitert von A. Wittmann, J. Klos. Wittmann, Alfred, author. ; Wittmann, Alfred. ; Klos, Joël. ; Klaften, Berthold. München : Wila Verlag W. Lampl, 1986. Fifth revised. German \| 608.0331\|G 10 KLA.D 1986 \| Detailed record - Similar records

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