Rotary or sleeve valve used in combustion chambers,申请号US19330695084-传众专利搜索

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发明名称	Rotary or sleeve valve used in combustion chambers
摘要
申请公布号	US2069938(A)	申请公布日期	1937.02.09
申请号	US19330695084	申请日期	1933.10.25
申请人	NANNA S. BROOKE	发明人	BROOKE FRANCIS M.
分类号	F01L7/04;H04M11/06	主分类号	F01L7/04
代理机构		代理人
主权项
地址

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