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发明名称
Means for preventing smudging by interleaved printing ribbons
摘要
申请公布号
US2092780(A)
申请公布日期
1937.09.14
申请号
US19340739249
申请日期
1934.08.10
申请人
SACERDOTE GUIDO M
发明人
SACERDOTE GUIDO M.
分类号
B41J31/12
主分类号
B41J31/12
代理机构
代理人
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地址
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