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发明名称
Sign-removing implement
摘要
申请公布号
US2148701(A)
申请公布日期
1939.02.28
申请号
US19370161164
申请日期
1937.08.26
申请人
LOY LEE C
发明人
LOY LEE C.
分类号
G09F7/18
主分类号
G09F7/18
代理机构
代理人
主权项
地址
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