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经营范围
发明名称
Oscillateur électronique
摘要
申请公布号
FR700544(A)
申请公布日期
1931.03.02
申请号
FRD700544
申请日期
1930.07.10
申请人
发明人
HOLLMANN HANS ERICH
分类号
H01J25/68;H03D1/26;H03D11/02
主分类号
H01J25/68
代理机构
代理人
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地址
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