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发明名称
Ribbon reel
摘要
申请公布号
US2102446(A)
申请公布日期
1937.12.14
申请号
US19370130286
申请日期
1937.03.11
申请人
HENRY WALLACE
发明人
WALLACE HENRY
分类号
B41J33/00
主分类号
B41J33/00
代理机构
代理人
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