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发明名称
Paper roll hoisting plug
摘要
申请公布号
US1857091(A)
申请公布日期
1932.05.03
申请号
US19310552775
申请日期
1931.07.23
申请人
THE TRIBUNE COMPANY
发明人
HORST FREDERICK VON DER
分类号
B66C1/66
主分类号
B66C1/66
代理机构
代理人
主权项
地址
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