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发明名称
Balanced throttle valve
摘要
申请公布号
US2057886(A)
申请公布日期
1936.10.20
申请号
US19350032154
申请日期
1935.07.19
申请人
OSWALD DUDA
发明人
DUDA OSWALD
分类号
F16K39/02
主分类号
F16K39/02
代理机构
代理人
主权项
地址
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