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经营范围
发明名称
Procédé et dispositif pour améliorer la combustion dans les chaudières
摘要
申请公布号
FR866458(A)
申请公布日期
1941.08.14
申请号
FRD866458
申请日期
1940.07.15
申请人
发明人
WAKABAYASHI KOTARO
分类号
主分类号
代理机构
代理人
主权项
地址
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