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经营范围
发明名称
Closed bottom service cock
摘要
申请公布号
US2699916(A)
申请公布日期
1955.01.18
申请号
US19490080969
申请日期
1949.03.11
申请人
ROCKWELL MANUFACTURING COMPANY
发明人
JOHNSON CHARLES B.
分类号
F16K41/16
主分类号
F16K41/16
代理机构
代理人
主权项
地址
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