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经营范围
发明名称
Phase indicating circuit
摘要
申请公布号
US2396253(A)
申请公布日期
1946.03.12
申请号
US19370177485
申请日期
1937.12.01
申请人
DINGLEY JR EDWARD N
发明人
JR. EDWARD N. DINGLEY,
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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