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发明名称
ROTARY VALVE FOR INTERNAL COMBUSTION ENGINES
摘要
申请公布号
CA307541(A)
申请公布日期
1931.01.13
申请号
CAD307541
申请日期
申请人
ALFRED BAER
发明人
ALFRED BAER
分类号
主分类号
代理机构
代理人
主权项
地址
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