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发明名称
Guiding device for circuit controllers
摘要
申请公布号
US1770579(A)
申请公布日期
1930.07.15
申请号
US19280287308
申请日期
1928.06.21
申请人
LONG JOHN E
发明人
LONG JOHN E.
分类号
H01H29/00;H01H43/24
主分类号
H01H29/00
代理机构
代理人
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地址
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