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经营范围
发明名称
Improvements in or relating to winding drums for use with pithead winding equipment
摘要
申请公布号
GB818596(A)
申请公布日期
1959.08.19
申请号
GB19560017057
申请日期
1956.06.01
申请人
GEORGE ALEXANDER BLACK
发明人
BLACK GEORGE ALEXANDER
分类号
B66D1/30
主分类号
B66D1/30
代理机构
代理人
主权项
地址
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