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发明名称
Improvements in rotary pumps
摘要
申请公布号
GB577881(A)
申请公布日期
1946.06.04
申请号
GB19440020791
申请日期
1944.10.25
申请人
DRYSDALE & COMPANY LIMITED;JOHN YOUNG
发明人
分类号
F04C2/107
主分类号
F04C2/107
代理机构
代理人
主权项
地址
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