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Tierproduktion behandelt. Statistische Daten zur Agrarproduktion und zum Import und Export von Agrarprodukten gehören ebenfalls zum …, Saudi Arabien, Spanien, Südafrika, Tschechien, Ukraine, Ungarn, USA, Vereinigtes Königreich (England) …
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Through a survey, economic value estimates were obtained on 962 inventions made in the United States and Germany and on which German patent renewal fees were paid to full-term expiration in 1995. A search of subsequent U.S. and German patents yielded a count of citations to those patents....
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