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发明名称
Quartz crystal mounting
摘要
申请公布号
US1969339(A)
申请公布日期
1934.08.07
申请号
US19320600956
申请日期
1932.03.24
申请人
RADIO CORPORATION OF AMERICA
发明人
USSELMAN GEORGE LINDLEY
分类号
H03H9/09
主分类号
H03H9/09
代理机构
代理人
主权项
地址
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