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发明名称
Perfectionnements à la constitution des tubes field
摘要
申请公布号
FR1149206(A)
申请公布日期
1957.12.23
申请号
FRD1149206
申请日期
1956.02.28
申请人
发明人
BARATA JOSE
分类号
F22B21/00
主分类号
F22B21/00
代理机构
代理人
主权项
地址
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