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发明名称
Improvements in and relating to oil-circulating pumps for electric-transformers and the like
摘要
申请公布号
GB348390(A)
申请公布日期
1931.05.14
申请号
GB19300015053
申请日期
1930.05.16
申请人
DRYSDALE & COMPANY, LIMITED;JOHN WHITEHEAD WILSON DRYSDALE
发明人
分类号
F04D29/04
主分类号
F04D29/04
代理机构
代理人
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