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经营范围
发明名称
Window screens and ventilators
摘要
申请公布号
GB534968(A)
申请公布日期
1941.03.24
申请号
GB19400001412
申请日期
1940.01.23
申请人
FREDERICK PICKERING WALKER;THE CRITTALL MANUFACTURING COMPANY, LIMITED
发明人
分类号
E06B7/082
主分类号
E06B7/082
代理机构
代理人
主权项
地址
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