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发明名称
Automatic damper
摘要
申请公布号
US2179940(A)
申请公布日期
1939.11.14
申请号
US19350051217
申请日期
1935.11.23
申请人
LAWSON JOHN F
发明人
LAWSON JOHN F.
分类号
F23L11/02;F23L13/02
主分类号
F23L11/02
代理机构
代理人
主权项
地址
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