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发明名称
Preparation of contact masses
摘要
申请公布号
US2433869(A)
申请公布日期
1948.01.06
申请号
US19440525666
申请日期
1944.03.09
申请人
HOUDRY PROCESS CORPORATION
发明人
SHABAKER HUBERT A.
分类号
B01J21/12;C10G11/04
主分类号
B01J21/12
代理机构
代理人
主权项
地址
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