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发明名称
钟铃自动鸣节器
摘要
申请公布号
TW000419
申请公布日期
1955.10.01
申请号
TW001091
申请日期
1955.04.30
申请人
黄之铭 黄奕钦
发明人
黄之铭;黄奕钦
分类号
G04B
主分类号
G04B
代理机构
代理人
主权项
地址
台北县瑞芳街78号
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