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经营范围
发明名称
Combined regulator and relief valve
摘要
申请公布号
US2213789(A)
申请公布日期
1940.09.03
申请号
US19380202336
申请日期
1938.04.15
申请人
WILKINS JAMES M
发明人
WILKINS JAMES M.
分类号
F16K17/168;G05D16/06
主分类号
F16K17/168
代理机构
代理人
主权项
地址
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