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发明名称
Improvements in or relating to electric contact making relays
摘要
申请公布号
GB342497(A)
申请公布日期
1931.02.05
申请号
GB19300001549
申请日期
1930.01.16
申请人
COVENTRY AUTOMATIC TELEPHONES, LIMITED;CHARLES WILFRID WILMAN
发明人
分类号
H01H50/54
主分类号
H01H50/54
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代理人
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