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发明名称
Furnace for roasting zinc blende
摘要
申请公布号
US1836002(A)
申请公布日期
1931.12.15
申请号
US19260121010
申请日期
1926.07.07
申请人
GEORG BALZ
发明人
BALZ GEORG
分类号
C22B1/02;F27B9/24
主分类号
C22B1/02
代理机构
代理人
主权项
地址
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