Magnetically impelled ball vibrator,申请号US19580720222-传众专利搜索

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发明名称	Magnetically impelled ball vibrator
摘要
申请公布号	US2945386(A)	申请公布日期	1960.07.19
申请号	US19580720222	申请日期	1958.03.10
申请人	PETERSON EDWIN F	发明人	PETERSON EDWIN F.
分类号	B06B1/16;B22C15/10	主分类号	B06B1/16
代理机构		代理人
主权项
地址

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