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发明名称
Lead oxide powder and method of making the same
摘要
申请公布号
US1888823(A)
申请公布日期
1932.11.22
申请号
US19240702889
申请日期
1924.03.29
申请人
HALL CLARENCE A
发明人
HALL CLARENCE A.
分类号
C01G21/02
主分类号
C01G21/02
代理机构
代理人
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地址
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