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发明名称
Improvements in or relating to record cards or sheets
摘要
申请公布号
GB754475(A)
申请公布日期
1956.08.08
申请号
GB19540010303
申请日期
1954.04.08
申请人
ELLIOTT ADDRESSING MACHINES LIMITED
发明人
ELLIOTT HARMON PARKER
分类号
B42F19/00
主分类号
B42F19/00
代理机构
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