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经营范围
发明名称
Internal combustion engine
摘要
申请公布号
US1990808(A)
申请公布日期
1935.02.12
申请号
US19310542667
申请日期
1931.06.06
申请人
EDMUND ROGERS
发明人
WERDER JOHN F.
分类号
F02M21/00
主分类号
F02M21/00
代理机构
代理人
主权项
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