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发明名称
Ventilating body or screen
摘要
申请公布号
US2441819(A)
申请公布日期
1948.05.18
申请号
US19450586486
申请日期
1945.04.04
申请人
JENSEN HERBERT R
发明人
JENSEN HERBERT R.
分类号
E06B9/24
主分类号
E06B9/24
代理机构
代理人
主权项
地址
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