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经营范围
发明名称
VENTILATORS IN WINDOWS
摘要
申请公布号
GB8729437(D0)
申请公布日期
1988.02.03
申请号
GB19870029437
申请日期
1987.12.17
申请人
STEEL, T A
发明人
分类号
E06B7/10;E06B7/14
主分类号
E06B7/10
代理机构
代理人
主权项
地址
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