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发明名称
Magneto testing
摘要
申请公布号
US2402749(A)
申请公布日期
1946.06.25
申请号
US19430472727
申请日期
1943.01.18
申请人
JOSEPH WEIDENHOFF, INC.
发明人
HASKINS BUTLER J.
分类号
G01R31/34
主分类号
G01R31/34
代理机构
代理人
主权项
地址
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