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发明名称
Deep well pumping apparatus
摘要
申请公布号
US1865676(A)
申请公布日期
1932.07.05
申请号
US19310517574
申请日期
1931.02.21
申请人
WALTER CHANCELLOR JOHN
发明人
CHANCELLOR JOHN WALTER
分类号
F04F1/12
主分类号
F04F1/12
代理机构
代理人
主权项
地址
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