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经营范围
发明名称
Vacuum operated water lifting apparatus
摘要
申请公布号
US1868673(A)
申请公布日期
1932.07.26
申请号
US19250006939
申请日期
1925.02.05
申请人
WARREN WEBSTER & COMPANY
发明人
SERRELL JOHN A.;FITTS JAMES L.
分类号
F24D1/00
主分类号
F24D1/00
代理机构
代理人
主权项
地址
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