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经营范围
发明名称
Constant flow valve
摘要
申请公布号
US2279066(A)
申请公布日期
1942.04.07
申请号
US19400368691
申请日期
1940.12.05
申请人
SEARS CLARENCE M
发明人
SEARS CLARENCE M.
分类号
G05D7/01
主分类号
G05D7/01
代理机构
代理人
主权项
地址
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