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发明名称
Oscillation generator
摘要
申请公布号
US1756130(A)
申请公布日期
1930.04.29
申请号
US19250050336
申请日期
1925.08.14
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
OHL RUSSELL S.
分类号
H03B5/34
主分类号
H03B5/34
代理机构
代理人
主权项
地址
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