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发明名称
Alarm device
摘要
申请公布号
US1973759(A)
申请公布日期
1934.09.18
申请号
US19330661530
申请日期
1933.03.18
申请人
GREGSON LUE V
发明人
GREGSON LUE V.
分类号
E05B45/02
主分类号
E05B45/02
代理机构
代理人
主权项
地址
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