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发明名称
Mineral classifier
摘要
申请公布号
US2407851(A)
申请公布日期
1946.09.17
申请号
US19430505524
申请日期
1943.10.08
申请人
SHANNON JOSEPH C
发明人
SHANNON JOSEPH C.
分类号
B07B1/52
主分类号
B07B1/52
代理机构
代理人
主权项
地址
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