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发明名称
Paper fastener
摘要
申请公布号
US2037270(A)
申请公布日期
1936.04.14
申请号
US19330677574
申请日期
1933.06.26
申请人
ROSS OSCAR A
发明人
ROSS OSCAR A.
分类号
B42F13/08
主分类号
B42F13/08
代理机构
代理人
主权项
地址
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