Ultrasonic wave train generator,申请号US19540465791-传众专利搜索

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发明名称	Ultrasonic wave train generator
摘要
申请公布号	US2842959(A)	申请公布日期	1958.07.15
申请号	US19540465791	申请日期	1954.11.01
申请人	SPERRY PRODUCTS, INC.	发明人	HENRY ELLIOTT A.
分类号	B06B1/02	主分类号	B06B1/02
代理机构		代理人
主权项
地址

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