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经营范围
发明名称
Automatic sealing gate valve
摘要
申请公布号
US2605078(A)
申请公布日期
1952.07.29
申请号
US19450631713
申请日期
1945.11.29
申请人
VOLPIN ALEXANDER S
发明人
VOLPIN ALEXANDER S.
分类号
F16K3/36
主分类号
F16K3/36
代理机构
代理人
主权项
地址
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