Pipe rapper transmission mechanism,申请号US19530361238-传众专利搜索

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发明名称	Pipe rapper transmission mechanism
摘要
申请公布号	US2702090(A)	申请公布日期	1955.02.15
申请号	US19530361238	申请日期	1953.06.12
申请人	RESEARCH CORPORATION	发明人	BROWN WILLIAM J.;JOULE WALTER M.
分类号	B03C3/76	主分类号	B03C3/76
代理机构		代理人
主权项
地址

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