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发明名称
Warning signal for movable closures such as doors, windows and the like
摘要
申请公布号
US2840654(A)
申请公布日期
1958.06.24
申请号
US19560580742
申请日期
1956.04.26
申请人
HALPERN MAURICE E
发明人
HALPERN MAURICE E.
分类号
H01H3/16
主分类号
H01H3/16
代理机构
代理人
主权项
地址
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