Valve-reseating apparatus,申请号US19270231546-传众专利搜索

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发明名称	Valve-reseating apparatus
摘要
申请公布号	US1749514(A)	申请公布日期	1930.03.04
申请号	US19270231546	申请日期	1927.11.07
申请人	VAN NORMAN MACHINE TOOL COMPANY	发明人	SCOTT JAMES Y.
分类号	B23C3/05;B23Q1/54	主分类号	B23C3/05
代理机构		代理人
主权项
地址

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