Method of and apparatus for modulating the frequency of sound waves,申请号US19450636038-传众专利搜索

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发明名称	Method of and apparatus for modulating the frequency of sound waves
摘要
申请公布号	US2424357(A)	申请公布日期	1947.07.22
申请号	US19450636038	申请日期	1945.12.19
申请人	ULTRASONIC CORPORATION	发明人	HORSLEY CAPERTON B.
分类号	G10K15/02	主分类号	G10K15/02
代理机构		代理人
主权项
地址

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