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发明名称
Biologisches Abwasser-Selbstreinigungs-Systems.
摘要
申请公布号
AT139271(B)
申请公布日期
1934.11.10
申请号
ATD139271
申请日期
1933.08.21
申请人
ING. MAX FRIEDERSDORFF
发明人
ING. MAX FRIEDERSDORFF
分类号
主分类号
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