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发明名称
Tuning device
摘要
申请公布号
US1789912(A)
申请公布日期
1931.01.20
申请号
US19240744095
申请日期
1924.10.17
申请人
RADIO FREQUENCY LABORATORIES, INCORPORATED
发明人
SNOW HAROLD A.
分类号
H03J1/08
主分类号
H03J1/08
代理机构
代理人
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地址
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