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发明名称
Roof ventilator
摘要
申请公布号
US3082677(A)
申请公布日期
1963.03.26
申请号
US19600015406
申请日期
1960.03.16
申请人
DURA-VENT CORPORATION
发明人
PEASE RICHARD O.
分类号
E04D13/147;F24F7/02
主分类号
E04D13/147
代理机构
代理人
主权项
地址
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