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发明名称
Improvements in rotary engines and pumps
摘要
申请公布号
GB341885(A)
申请公布日期
1931.01.09
申请号
GB19290030620
申请日期
1929.10.09
申请人
JOSEPH WILLIAMS
发明人
分类号
F02B53/02
主分类号
F02B53/02
代理机构
代理人
主权项
地址
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