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经营范围
发明名称
économiseur de gaz
摘要
申请公布号
FR905813(A)
申请公布日期
1945.12.14
申请号
FRD905813
申请日期
1944.07.13
申请人
发明人
RAVIGNEAUX POL
分类号
F24C3/08
主分类号
F24C3/08
代理机构
代理人
主权项
地址
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