Improvements in rotary valves for internal combustion engines,申请号GB19290016311-传众专利搜索

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发明名称	Improvements in rotary valves for internal combustion engines
摘要
申请公布号	GB328827(A)	申请公布日期	1930.05.08
申请号	GB19290016311	申请日期	1929.05.27
申请人	FRANK VOREL	发明人
分类号	F01L7/02	主分类号	F01L7/02
代理机构		代理人
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