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经营范围
发明名称
Valve structure having readily removable plug and seat structures
摘要
申请公布号
US2997057(A)
申请公布日期
1961.08.22
申请号
US19570643070
申请日期
1957.02.28
申请人
GENERAL CONTROLS CO.
发明人
TOTH LOUIS R.
分类号
F16K5/04
主分类号
F16K5/04
代理机构
代理人
主权项
地址
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