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发明名称
Spool
摘要
申请公布号
US2126993(A)
申请公布日期
1938.08.16
申请号
US19360117554
申请日期
1936.12.24
申请人
HUBBARD SPOOL COMPANY
发明人
HOWSAM HILYARD C.
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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