Poppet valve and valve seat for internal-combustion engines,申请号US19410375246-传众专利搜索

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发明名称	Poppet valve and valve seat for internal-combustion engines
摘要
申请公布号	US2380821(A)	申请公布日期	1945.07.31
申请号	US19410375246	申请日期	1941.01.21
申请人	ALLEGHENY LUDLUM STEEL CORPORATION	发明人	BREELER WALTER R.;JR. GURDON M. BUTLER,
分类号	F01L3/02	主分类号	F01L3/02
代理机构		代理人
主权项
地址

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