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发明名称
Improved rope roller frame
摘要
申请公布号
GB521453(A)
申请公布日期
1940.05.22
申请号
GB19380033522
申请日期
1938.11.18
申请人
RICHARD EDGAR BARKER
发明人
分类号
B66D3/04
主分类号
B66D3/04
代理机构
代理人
主权项
地址
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