Air-cooled valve-stem guide and bushing,申请号US19280310978-传众专利搜索

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发明名称	Air-cooled valve-stem guide and bushing
摘要
申请公布号	US1793581(A)	申请公布日期	1931.02.24
申请号	US19280310978	申请日期	1928.10.03
申请人	BICE WALTER H	发明人	BICE WALTER H.
分类号	F01L3/18	主分类号	F01L3/18
代理机构		代理人
主权项
地址

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