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发明名称
Weatherproof louverf
摘要
申请公布号
US3287870(A)
申请公布日期
1966.11.29
申请号
US19640358230
申请日期
1964.04.08
申请人
THE AMERICAN WARMING & VENTILATING, INC.
发明人
JOHNSON EDWARD H.
分类号
E06B7/082;F24F13/08
主分类号
E06B7/082
代理机构
代理人
主权项
地址
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