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发明名称
Selector for printing machines
摘要
申请公布号
US1992869(A)
申请公布日期
1935.02.26
申请号
US19310573223
申请日期
1931.11.05
申请人
JOSEPH KRELL
发明人
KRELL JOSEPH
分类号
B41L47/58
主分类号
B41L47/58
代理机构
代理人
主权项
地址
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