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发明名称
Improvements in or relating to electromagnetic relays for use in automatic telephoneand like systems
摘要
申请公布号
GB586010(A)
申请公布日期
1947.03.04
申请号
GB19440009149
申请日期
1944.05.12
申请人
FRANK ROBERT MCBERTY
发明人
分类号
H01H51/20;H04Q1/08
主分类号
H01H51/20
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