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发明名称
Perfectionnements apportés aux éléments surchauffeurs annulaires
摘要
申请公布号
FR774221(A)
申请公布日期
1934.12.03
申请号
FRD774221
申请日期
1933.09.01
申请人
LOUVROIL & RECQUIGNIES
发明人
分类号
F22G3/00
主分类号
F22G3/00
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代理人
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