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发明名称
Time-controlled corrective apparatus for dual secondary systems
摘要
申请公布号
US2055080(A)
申请公布日期
1936.09.22
申请号
US19320634684
申请日期
1932.09.24
申请人
STROMBERG ELECTRIC COMPANY
发明人
JACKSON EDWARD B.
分类号
G04C13/03
主分类号
G04C13/03
代理机构
代理人
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