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发明名称
Spool
摘要
申请公布号
US2538584(A)
申请公布日期
1951.01.16
申请号
US19450580373
申请日期
1945.03.01
申请人
HUBBARD SPOOL COMPANY
发明人
MUELLER PAUL M.
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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