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发明名称
Improvements in or relating to receivers for electromagnetic call systems
摘要
申请公布号
GB855627(A)
申请公布日期
1960.12.07
申请号
GB19570035700
申请日期
1957.11.15
申请人
MULTITONE ELECTRIC COMPANY LIMITED
发明人
SNEATH OSWALD BARBER
分类号
H04B5/04;H04W88/02
主分类号
H04B5/04
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代理人
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