Evolution of the patent filing activities in the EEC
Subtitle: a contribution to the study and assessment of the technological trends developing in the EEC from 1969 to 1975 based on a statistical analysis of patents
By: by H. Grevink and H. Kronz.
Contributors: Kronz, H.; European Communities. Commission. Directorate-General Scientific and Technical Information Management.
Series: Information management -- EUR 6574
Publisher: European Communities
Published: 1980
Language: eng