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发明名称
Frequency control apparatus
摘要
申请公布号
US1968035(A)
申请公布日期
1934.07.31
申请号
US19310581040
申请日期
1931.12.14
申请人
GEBHARD LOUIS A
发明人
GEBHARD LOUIS A.
分类号
H03L1/04
主分类号
H03L1/04
代理机构
代理人
主权项
地址
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