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发明名称
Precision sweep calibrator
摘要
申请公布号
US2719917(A)
申请公布日期
1955.10.04
申请号
US19520276599
申请日期
1952.03.14
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
CHAPMAN KENNETH L.
分类号
H03B5/34;H04N5/067
主分类号
H03B5/34
代理机构
代理人
主权项
地址
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