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经营范围
发明名称
Arrangement for heating gases flowing through shafts
摘要
申请公布号
US1997776(A)
申请公布日期
1935.04.16
申请号
US19330674645
申请日期
1933.06.07
申请人
ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET
发明人
HOGEL LENNART
分类号
F24H3/04
主分类号
F24H3/04
代理机构
代理人
主权项
地址
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