Device to produce sleep inducing sound,申请号US19530397235-传众专利搜索

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发明名称	Device to produce sleep inducing sound
摘要
申请公布号	US2711165(A)	申请公布日期	1955.06.21
申请号	US19530397235	申请日期	1953.12.09
申请人	LEAVENWORTH MAX H	发明人	LEAVENWORTH MAX H.
分类号	A61M21/00	主分类号	A61M21/00
代理机构		代理人
主权项
地址

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