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发明名称
Process for the purification of sand having a ferruginous coating
摘要
申请公布号
US2556005(A)
申请公布日期
1951.06.05
申请号
US19480061129
申请日期
1948.11.19
申请人
THE STANDARD BRICK AND SAND COMPANY LIMITED
发明人
SEGROVE HERBERT DAYMOND
分类号
C03C1/02
主分类号
C03C1/02
代理机构
代理人
主权项
地址
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