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发明名称
VARIABLE IMPEDANCE DEVICE
摘要
申请公布号
CA669981(A)
申请公布日期
1963.09.03
申请号
CAD669981
申请日期
申请人
CORNING GLASS WORKS
发明人
NICHOLAS LAZAR;KEITH S. MCINTOSH
分类号
主分类号
代理机构
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