Methods of increasing the work efficiency of a tool by generation of a sympathetic vibration condition in the mass being worked, and high speed engines for employing said methods,申请号US19550550553-传众专利搜索

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发明名称	Methods of increasing the work efficiency of a tool by generation of a sympathetic vibration condition in the mass being worked, and high speed engines for employing said methods
摘要
申请公布号	US2911951(A)	申请公布日期	1959.11.10
申请号	US19550550553	申请日期	1955.12.02
申请人	SWANSON BERNARD A	发明人	SWANSON BERNARD A.
分类号	F01B17/00;F01B17/02	主分类号	F01B17/00
代理机构		代理人
主权项
地址

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