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发明名称
Battery charging and supervisory apparatus for closed circuit alarm systems
摘要
申请公布号
US2996652(A)
申请公布日期
1961.08.15
申请号
US19560623621
申请日期
1956.11.21
申请人
AUTOMATIC FIRE ALARM COMPANY
发明人
CASSELL JOSEPH L.
分类号
H02J7/12
主分类号
H02J7/12
代理机构
代理人
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地址
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