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发明名称
Process of activating or revivifying finely divided materials
摘要
申请公布号
US1852603(A)
申请公布日期
1932.04.05
申请号
US19280312938
申请日期
1928.10.16
申请人
NICHOLS ENGINEERING AND RESEARCH CORPORATION
发明人
BROCKWAY GEORGE GLEN
分类号
B01J20/12
主分类号
B01J20/12
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代理人
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