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经营范围
发明名称
Rotary internal combustion engine
摘要
申请公布号
US1902768(A)
申请公布日期
1933.03.21
申请号
US19300457551
申请日期
1930.05.30
申请人
JOHN HARRAH
发明人
DUER EDWARD C.
分类号
F02B75/22
主分类号
F02B75/22
代理机构
代理人
主权项
地址
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