Pulse rate measuring system,申请号US19550542261-传众专利搜索

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发明名称	Pulse rate measuring system
摘要
申请公布号	US2839725(A)	申请公布日期	1958.06.17
申请号	US19550542261	申请日期	1955.10.24
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	HAAS CHARLES W.
分类号	H04M1/24	主分类号	H04M1/24
代理机构		代理人
主权项
地址

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