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经营范围
发明名称
Ventilated building structure
摘要
申请公布号
US2684622(A)
申请公布日期
1954.07.27
申请号
US19520265341
申请日期
1952.01.07
申请人
CARLSON HAROLD B
发明人
CARLSON HAROLD B.
分类号
E06B7/02
主分类号
E06B7/02
代理机构
代理人
主权项
地址
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