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发明名称
Improvements in or relating to valves for internal combustion engines
摘要
申请公布号
GB523824(A)
申请公布日期
1940.07.23
申请号
GB19390001434
申请日期
1939.01.16
申请人
AURELIO POSSENTI;EDGARDO RIETTI
发明人
分类号
F01L3/14;F01L3/16;F01L3/18
主分类号
F01L3/14
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代理人
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