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发明名称
METHOD AND APPARATUS FOR FLOTATION SEPARATION OF LIGHTWEIGHT AGGREGATE AND PRODUCT
摘要
申请公布号
CA638628(A)
申请公布日期
1962.03.20
申请号
CAD638628
申请日期
申请人
SOUTHERN LIGHTWEIGHT AGGREGATE CORPORATION
发明人
ROBERT VON K. DUEY;ALBERT F. OLD;RICHARD F. GIBSON
分类号
主分类号
代理机构
代理人
主权项
地址
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