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发明名称
Perfectionnements aux chaudières à vapeur à faisceau multiaquatubulaire vertical
摘要
申请公布号
FR1011830(A)
申请公布日期
1952.06.27
申请号
FRD1011830
申请日期
1949.03.30
申请人
C. RANDON & COMPAGNIE
发明人
分类号
F22B23/00
主分类号
F22B23/00
代理机构
代理人
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