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发明名称
Direct acting damper structure
摘要
申请公布号
US2973061(A)
申请公布日期
1961.02.28
申请号
US19570687451
申请日期
1957.10.01
申请人
HOUDAILLE INDUSTRIES, INC.
发明人
RUMSEY ROLLIN DOUGLAS
分类号
B64D45/00
主分类号
B64D45/00
代理机构
代理人
主权项
地址
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