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发明名称
TELEPHONE BELL CHIME ENCLOSURE
摘要
申请公布号
CA49698(S)
申请公布日期
1982.05.10
申请号
CANDAT0049698F
申请日期
申请人
NORTHERN TELECOM LIMITED
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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