Alarm for wrist watches,申请号US19520323281-传众专利搜索

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发明名称	Alarm for wrist watches
摘要
申请公布号	US2656673(A)	申请公布日期	1953.10.27
申请号	US19520323281	申请日期	1952.11.29
申请人	MATTSON JR VICTOR EMMANUEL	发明人	JR. VICTOR EMMANUEL MATTSON,
分类号	G04B23/12	主分类号	G04B23/12
代理机构		代理人
主权项
地址

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