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发明名称
Spool for typewriter ribbons
摘要
申请公布号
US2667257(A)
申请公布日期
1954.01.26
申请号
US19520272347
申请日期
1952.02.19
申请人
HURTADO S RICARDO
发明人
S. RICARDO HURTADO
分类号
B41J33/00
主分类号
B41J33/00
代理机构
代理人
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