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发明名称	PROTECTIVE ALARM DEVICE
摘要
申请公布号	CA314123(A)	申请公布日期	1931.08.11
申请号	CAD314123	申请日期
申请人	VERNA E. DAVIDSON	发明人	VERNA E. DAVIDSON
分类号		主分类号
代理机构		代理人
主权项
地址

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