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经营范围
发明名称
Automatic cone valve
摘要
申请公布号
US2123039(A)
申请公布日期
1938.07.05
申请号
US19360060586
申请日期
1936.01.24
申请人
THOR GANNESTAD
发明人
GANNESTAD THOR
分类号
F16K17/34
主分类号
F16K17/34
代理机构
代理人
主权项
地址
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