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经营范围
发明名称
Stopcock
摘要
申请公布号
US2109654(A)
申请公布日期
1938.03.01
申请号
US19360079240
申请日期
1936.05.12
申请人
STEVENS CHARLES W
发明人
STEVENS CHARLES W.
分类号
F16K5/22
主分类号
F16K5/22
代理机构
代理人
主权项
地址
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