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发明名称
Method of fractionally separating pulverulent materials
摘要
申请公布号
US1934410(A)
申请公布日期
1933.11.07
申请号
US19300458285
申请日期
1930.05.31
申请人
CELITE CORPORATION
发明人
CUMMINS ARTHUR B.
分类号
B07B9/00
主分类号
B07B9/00
代理机构
代理人
主权项
地址
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