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发明名称
Phase meter
摘要
申请公布号
US2305614(A)
申请公布日期
1942.12.22
申请号
US19410402998
申请日期
1941.07.18
申请人
GOLDSTEIN MAXWELL K
发明人
GOLDSTEIN MAXWELL K.
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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