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发明名称
Apparatus for sealing a transparency slide
摘要
申请公布号
US2870815(A)
申请公布日期
1959.01.27
申请号
US19560616907
申请日期
1956.10.04
申请人
ARNOLD PERROT
发明人
PERROT ARNOLD
分类号
B21D53/00;G03D15/10
主分类号
B21D53/00
代理机构
代理人
主权项
地址
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