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发明名称
Telecommunication push-button signalling device
摘要
申请公布号
GB1072558(A)
申请公布日期
1967.06.21
申请号
GB19640040989
申请日期
1964.10.08
申请人
ERICSSON TELEPHONES LIMITED
发明人
GEDDES GERALD DUNCAN;BIRD JOSIAH
分类号
H01H13/28;H01H13/64
主分类号
H01H13/28
代理机构
代理人
主权项
地址
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