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经营范围
发明名称
Air duct
摘要
申请公布号
US2134919(A)
申请公布日期
1938.11.01
申请号
US19370140749
申请日期
1937.05.04
申请人
HORSTER WILLIAM H
发明人
HORSTER WILLIAM H.
分类号
F16L9/00
主分类号
F16L9/00
代理机构
代理人
主权项
地址
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