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经营范围
发明名称
Perfectionnement aux joints étanches applicable dans les tubes à haute fréquence
摘要
申请公布号
FR998674(A)
申请公布日期
1952.01.22
申请号
FRD998674
申请日期
1949.10.03
申请人
SOCIETE FRANCAISE RADIO-ELECTRIQUE
发明人
分类号
C03C27/04
主分类号
C03C27/04
代理机构
代理人
主权项
地址
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