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发明名称
Magnetic signalling device
摘要
申请公布号
US3071703(A)
申请公布日期
1963.01.01
申请号
US19590817275
申请日期
1959.06.01
申请人
MATHCWS KENNETH C
发明人
MATHCWS KENNETH C.
分类号
H02K24/00
主分类号
H02K24/00
代理机构
代理人
主权项
地址
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