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经营范围
发明名称
Sash ventilator
摘要
申请公布号
US2624263(A)
申请公布日期
1953.01.06
申请号
US19500184805
申请日期
1950.09.14
申请人
KLEIN ROBERT L
发明人
KLEIN ROBERT L.
分类号
E06B7/10
主分类号
E06B7/10
代理机构
代理人
主权项
地址
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