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发明名称
CLASSIFICATION BY FLOTATION
摘要
申请公布号
US3539000(A)
申请公布日期
1970.11.10
申请号
USD3539000
申请日期
1967.09.18
申请人
BERGWERKSVERBAND GMBH.
发明人
WALTER VOGEL
分类号
B03D1/26;G03B1/48;(IPC1-7):B03B1/00;B03D1/02
主分类号
B03D1/26
代理机构
代理人
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地址
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