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经营范围
发明名称
Reducing composition
摘要
申请公布号
US2109708(A)
申请公布日期
1938.03.01
申请号
US19360113615
申请日期
1936.12.01
申请人
ALFRED PFISTER
发明人
PFISTER ALFRED
分类号
C01B17/66
主分类号
C01B17/66
代理机构
代理人
主权项
地址
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