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发明名称
Balanced throttling valve
摘要
申请公布号
US2266485(A)
申请公布日期
1941.12.16
申请号
US19400317745
申请日期
1940.02.07
申请人
WILLIAMS FRANK J
发明人
WILLIAMS FRANK J.
分类号
F16K1/12
主分类号
F16K1/12
代理机构
代理人
主权项
地址
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