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发明名称
Foyer économiseur de charbon pour chaudière à vapeur
摘要
申请公布号
FR701165(A)
申请公布日期
1931.03.12
申请号
FRD701165
申请日期
1930.08.12
申请人
LANGER FUEL SAVING CORPORATION OF AMERICA
发明人
分类号
F23L7/00
主分类号
F23L7/00
代理机构
代理人
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地址
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