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经营范围
发明名称
Paper piercer
摘要
申请公布号
US2558567(A)
申请公布日期
1951.06.26
申请号
US19490080613
申请日期
1949.03.10
申请人
ERNST KAESER
发明人
KAESER ERNST
分类号
B26F1/36
主分类号
B26F1/36
代理机构
代理人
主权项
地址
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