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经营范围
发明名称
Stopcock
摘要
申请公布号
US2240074(A)
申请公布日期
1941.04.29
申请号
US19400328619
申请日期
1940.04.09
申请人
WILLIAM O. GEYER
发明人
KAIN LEWIS V.
分类号
F16K27/06
主分类号
F16K27/06
代理机构
代理人
主权项
地址
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