Titel
Trends in patent filing activities in the EEC : a contribution to the study and assessment of the technological trends developing in the EEC from 1969 to 1980 base on a statistical analysis
Beschreibung
Trends in patent filing activities in the EEC : a contribution to the study and assessment of the technological trends developing in the EEC from 1969 to 1980 base on a statistical analysis / H. Grevink, H. Kronz
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