Drum type indicator alarm clock,申请号US19400368329-传众专利搜索

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发明名称	Drum type indicator alarm clock
摘要
申请公布号	US2459107(A)	申请公布日期	1949.01.11
申请号	US19400368329	申请日期	1940.12.03
申请人	CASCO PRODUCTS CORPORATION	发明人	JOHNSON ARTHUR A.
分类号	G04B19/21	主分类号	G04B19/21
代理机构		代理人
主权项
地址

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