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发明名称
Improvements in valveless four-stroke cycle internal combustion engines
摘要
申请公布号
GB488336(A)
申请公布日期
1938.07.05
申请号
GB19370025987
申请日期
1937.09.24
申请人
ROBERT GRIS
发明人
分类号
F02B75/26
主分类号
F02B75/26
代理机构
代理人
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