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经营范围
发明名称
Improvements in, or relating to valve gear for four stroke internal combustion engines
摘要
申请公布号
GB767645(A)
申请公布日期
1957.02.06
申请号
GB19550007285
申请日期
1955.03.11
申请人
RENE LOUIS MARTIN
发明人
分类号
F01L1/344
主分类号
F01L1/344
代理机构
代理人
主权项
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