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经营范围
发明名称
Valve testing apparatus
摘要
申请公布号
US2258224(A)
申请公布日期
1941.10.07
申请号
US19380218247
申请日期
1938.07.08
申请人
GENERAL ELECTRIC COMPANY
发明人
SHEPPARD RAYMOND
分类号
F16K37/00
主分类号
F16K37/00
代理机构
代理人
主权项
地址
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