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经营范围
发明名称
Improvements in rotary pumps, compressors, engines and the like
摘要
申请公布号
GB341013(A)
申请公布日期
1931.01.05
申请号
GB19290020640
申请日期
1929.07.05
申请人
CECIL HUGHES
发明人
分类号
F01C3/02
主分类号
F01C3/02
代理机构
代理人
主权项
地址
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