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经营范围
发明名称
Door frames of buildings
摘要
申请公布号
GB605414(A)
申请公布日期
1948.07.22
申请号
GB19450034775
申请日期
1945.12.21
申请人
WILLIAM GEORGE HITCHINS
发明人
分类号
E06B1/52
主分类号
E06B1/52
代理机构
代理人
主权项
地址
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