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发明名称
Retractable down draft vent unit for removing smoke and grease vapors of a cooking range or cook-top
摘要
申请公布号
USD327538(S1)
申请公布日期
1992.06.30
申请号
US07/331572
申请日期
1989.03.30
申请人
发明人
分类号
主分类号
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代理人
主权项
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