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发明名称
Spool with removable head
摘要
申请公布号
US2613049(A)
申请公布日期
1952.10.07
申请号
US19470774944
申请日期
1947.09.19
申请人
AKRON SPOOL & MANUFACTURING CO.
发明人
HAWLEY JOHN B.
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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