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发明名称
Portable dry battery burglar alarm
摘要
申请公布号
US2228120(A)
申请公布日期
1941.01.07
申请号
US19380230423
申请日期
1938.09.17
申请人
WILLIAM KOEHLER
发明人
KOEHLER WILLIAM
分类号
G08B13/08
主分类号
G08B13/08
代理机构
代理人
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