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发明名称
ACOUSTIC ALARM DEVICE
摘要
申请公布号
CA641154(A)
申请公布日期
1962.05.15
申请号
CAD641154
申请日期
申请人
SVENSKA AKTIEBOLAGET GASACCUMULATOR
发明人
ALBERT HAGGER
分类号
主分类号
代理机构
代理人
主权项
地址
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