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经营范围
发明名称
Procédé et montage pour la compensation du bruit dans le tube à onde progressive
摘要
申请公布号
FR1008545(A)
申请公布日期
1952.05.19
申请号
FRD1008545
申请日期
1948.04.24
申请人
发明人
WALLAUSCHEK RICHARD
分类号
H01J23/11
主分类号
H01J23/11
代理机构
代理人
主权项
地址
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