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发明名称
Perfectionnements aux chaudières sectionnées, en tubes d'acier, pour chauffage central
摘要
申请公布号
FR837048(A)
申请公布日期
1939.02.01
申请号
FRD837048
申请日期
1937.10.12
申请人
发明人
BOUELLAT PAUL
分类号
F24H1/40
主分类号
F24H1/40
代理机构
代理人
主权项
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