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发明名称
Device for compiling sales and collection records
摘要
申请公布号
US2095063(A)
申请公布日期
1937.10.05
申请号
US19310553703
申请日期
1931.07.29
申请人
GRAF ELIZABETH M
发明人
GRAF ELIZABETH M.
分类号
B42F17/30
主分类号
B42F17/30
代理机构
代理人
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