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发明名称
Verfahren zur Steigerung der Wirtschaftlichkeit der Nutz- und Masttierzucht.
摘要
申请公布号
AT134627(B)
申请公布日期
1933.09.11
申请号
ATD134627
申请日期
1931.07.13
申请人
DR. HEINRICH GEFFCKEN;DR. HANS RICHTER
发明人
DR. HEINRICH GEFFCKEN;DR. HANS RICHTER
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主分类号
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