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发明名称
Sticking corner for fastening cards and photos
摘要
申请公布号
US1927338(A)
申请公布日期
1933.09.19
申请号
US19310583082
申请日期
1931.12.24
申请人
KARL GERMAR
发明人
ENGELMANN REINHOLD
分类号
B42F5/06
主分类号
B42F5/06
代理机构
代理人
主权项
地址
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