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发明名称
Pocket secretary
摘要
申请公布号
US2828975(A)
申请公布日期
1958.04.01
申请号
US19570652811
申请日期
1957.04.15
申请人
BUFORD WRIGHT CHARLES
发明人
WRIGHT CHARLES BUFORD
分类号
B42D5/00;B42F7/06
主分类号
B42D5/00
代理机构
代理人
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