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经营范围
发明名称
Burglar alarm
摘要
申请公布号
US2138316(A)
申请公布日期
1938.11.29
申请号
US19370160708
申请日期
1937.08.24
申请人
WALL JOHN A
发明人
WALL JOHN A.
分类号
G08B13/08
主分类号
G08B13/08
代理机构
代理人
主权项
地址
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