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  1. Geiß, D.: Aus der Praxis der Patentinformation : Teil 1: Neue Entwicklungen bei den Internetprovidern (2007) 6.65
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  2. Geiß, D.: Entwurf für ein deutsches Patentinformationssystem : eine Zwischenbilanz (1988) 6.65
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  3. Vijvers, W.G.: ¬The International Patent Classification as a search tool (1990) 6.65
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  4. Einführung in die Handhabung der Internationalen Patentklassifikation (1977) 6.65
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  5. Taube, U.-F.: ¬Die Internationale Patentklassifikation (IPC) und ihre Anwendung in der Bibliothek des Deutschen Patentamtes (1979) 6.65
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  6. Hartung, V.: ¬Das Patentinformationssystem PATIS des Deutschen Patentamtes (1995) 6.65
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  7. Inhaltserschließung von Massendaten : zur Wirksamkeit informationslinguistischer Verfahren am Beispiel des deutschen Patentinformationssystems (1987) 6.65
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  8. Geiß, D.: Aus der Praxis der Patentinformation : die Entwicklung der elektronischen Medien und Dienstleistungen bei den Patentbehörden und Internetprovidern (2011) 6.65
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  9. Handbuch der Datenbanken für Naturwissenschaft und Technik, Patente (1994) 6.65
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  10. Myers, J.S.: Patent images on CD-ROM : numeric vs. classified sets (1992) 6.65
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  11. Wild, L.: ¬Die Patentschriftenauslegestellen in der BRD : regionale technische Informationszentren mit qualifiziertem Rechercheangebot u.a. zum Stand der Technik und für einschlägige Konkurrentanalysen (1990) 6.65
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  12. Wittmann, A.: Patentdokumentation (1990) 6.65
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  13. Schramm, R.: Patentinformation (1997) 6.65
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  14. Krestel, H.: Informationen aus der Patentdokumentation : unverzichtbare Grundlagen für die Entwicklung und Strategieplanung im Unternehmen (1990) 6.65
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  15. Nuyts, A.; Jonckheere, C.: Automated patent searching in the EPO : from online searching to document delivery (1996) 6.65
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  16. Kaback, S.M.: ONLINE patent information : who needs indexing? We do, naturally! (1992) 6.65
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  17. Wittmann, A.: Classifying and indexing of patent documents : a retired patent documentalist looks back (1994) 6.65
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  18. Hansson, B.; Makarov, M.: ¬The sixth edition of the IPC (1995) 6.65
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  19. Schweikhardt, F.: Some thoughts on hybrid systems especially for patent documentation (1989) 6.65
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  20. Spear, B.: Patent information on the Internet (1996) 6.65
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