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经营范围
发明名称
étalon de fréquence réglable
摘要
申请公布号
FR1221607(A)
申请公布日期
1960.06.02
申请号
FR19580774375
申请日期
1958.09.12
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
分类号
H03B21/02
主分类号
H03B21/02
代理机构
代理人
主权项
地址
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