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经营范围
发明名称
Condensation pump
摘要
申请公布号
US1915464(A)
申请公布日期
1933.06.27
申请号
US19300488312
申请日期
1930.10.13
申请人
W.M. WELCH MANUFACTURING CO.
发明人
KNIPP CHARLES T.
分类号
F04F9/00
主分类号
F04F9/00
代理机构
代理人
主权项
地址
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