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经营范围
发明名称
Rotary engine
摘要
申请公布号
US1952197(A)
申请公布日期
1934.03.27
申请号
US19310529223
申请日期
1931.04.10
申请人
DAVIS OSCAR N
发明人
DAVIS OSCAR N.
分类号
F01D1/02
主分类号
F01D1/02
代理机构
代理人
主权项
地址
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