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发明名称
FREIFLUSSVISCOSIMETER.
摘要
申请公布号
DE1604407(U)
申请公布日期
1950.04.06
申请号
DE194800D3536U
申请日期
1948.10.01
申请人
DR. HANS UMSTAETTER
发明人
DR. HANS UMSTAETTER
分类号
主分类号
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代理人
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