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发明名称
Gate valve
摘要
申请公布号
US2237776(A)
申请公布日期
1941.04.08
申请号
US19380207482
申请日期
1938.05.12
申请人
AMERICAN CHAIN & CABLE COMPANY, INC.
发明人
BENOIT LESTER W.
分类号
F16K3/316
主分类号
F16K3/316
代理机构
代理人
主权项
地址
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