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经营范围
发明名称
Valve for concrete pumps
摘要
申请公布号
US2123591(A)
申请公布日期
1938.07.12
申请号
US19350026670
申请日期
1935.06.14
申请人
CHAIN BELT COMPANY
发明人
SICBERT WILLY
分类号
F04B7/00;F04B15/02
主分类号
F04B7/00
代理机构
代理人
主权项
地址
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