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发明名称
MECHANICAL IMPEDANCE BRIDGE
摘要
申请公布号
CA437936(A)
申请公布日期
1946.11.12
申请号
CAD437936
申请日期
申请人
RADIO CORPORATION OF AMERICA
发明人
ALPHA M. WIGGINS
分类号
主分类号
代理机构
代理人
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