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发明名称
Means for producing tin oxide
摘要
申请公布号
US1968933(A)
申请公布日期
1934.08.07
申请号
US19310524307
申请日期
1931.03.21
申请人
ERNST FELDMANN
发明人
FELDMANN ERNST
分类号
C01G19/02
主分类号
C01G19/02
代理机构
代理人
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