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经营范围
发明名称
Improvements in and relating to spool structure
摘要
申请公布号
GB663764(A)
申请公布日期
1951.12.27
申请号
GB19480023186
申请日期
1948.09.02
申请人
DOMINION MAGNESIUM LIMITED
发明人
分类号
B65H75/14
主分类号
B65H75/14
代理机构
代理人
主权项
地址
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