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发明名称
MAGNETIC SWITCHING DEVICE
摘要
申请公布号
CA845288(A)
申请公布日期
1970.06.23
申请号
CAD845288
申请日期
申请人
ILLINOIS TOOL WORKS INC.
发明人
JOHN A. KOEPKE
分类号
主分类号
代理机构
代理人
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地址
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