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经营范围
发明名称
Quadrangular tube
摘要
申请公布号
US1897126(A)
申请公布日期
1933.02.14
申请号
US19310545601
申请日期
1931.06.19
申请人
FRIED. KRUPP AKTIENGESELLSCHAFT
发明人
INGENKAMP MATTHLIAS
分类号
F22B17/16
主分类号
F22B17/16
代理机构
代理人
主权项
地址
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