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经营范围
发明名称
Precision a. c. phase sensor
摘要
申请公布号
US3287639(A)
申请公布日期
1966.11.22
申请号
US19640402670
申请日期
1964.10.08
申请人
VAIL MARION L
发明人
VAIL MARION L.
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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