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经营范围
发明名称
Fibrous material
摘要
申请公布号
US2282466(A)
申请公布日期
1942.05.12
申请号
US19380188764
申请日期
1938.02.04
申请人
RUDOLF ETZKORN
发明人
ETZKORN RUDOLF
分类号
F16J15/20
主分类号
F16J15/20
代理机构
代理人
主权项
地址
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