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经营范围
发明名称
Phase comparator circuit
摘要
申请公布号
US3210661(A)
申请公布日期
1965.10.05
申请号
US19630273132
申请日期
1963.04.15
申请人
SHELL OIL COMPANY
发明人
JR. HOWARD L. SHATTO,
分类号
G01R25/00
主分类号
G01R25/00
代理机构
代理人
主权项
地址
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