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发明名称
Improvements relating to rotary pumps or the like for any suitable purpose
摘要
申请公布号
GB409787(A)
申请公布日期
1934.05.10
申请号
GB19320032355
申请日期
1932.11.16
申请人
HERBERT VARLEY
发明人
分类号
F04C2/356
主分类号
F04C2/356
代理机构
代理人
主权项
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