Patentdatenbankführer
Subtitle: der direkte Draht zu allen Patentdatenbanken weltweit
By: Jürgen Schulte-Hillen, Beatrix von Wietersheim.
Contributors: Wietersheim, Beatrix von.
Publisher: VDI Verlag
Published: 1984
Place of publication: Düsseldorf
Language: ger
Number of pages: 166
Subjects: Patents -- Information services -- Directories.