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发明名称
Draft control device
摘要
申请公布号
US2161809(A)
申请公布日期
1939.06.13
申请号
US19350039941
申请日期
1935.09.10
申请人
FRANKS ROYE W
发明人
FRANKS ROYE W.
分类号
F23L11/02
主分类号
F23L11/02
代理机构
代理人
主权项
地址
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