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发明名称
Method of improving kaolin and products thereof
摘要
申请公布号
US2524816(A)
申请公布日期
1950.10.10
申请号
US19460649294
申请日期
1946.02.21
申请人
BIRD MACHINE CO.
发明人
LYONS SANFORD C.
分类号
C04B33/02;D21H19/40
主分类号
C04B33/02
代理机构
代理人
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