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发明名称
Panels for flexible cards
摘要
申请公布号
US2815758(A)
申请公布日期
1957.12.10
申请号
US19550541564
申请日期
1955.10.20
申请人
SPERRY RAND CORPORATION
发明人
WOLTERS CARL F.;RIGGS ROBERT W.
分类号
B42F17/18
主分类号
B42F17/18
代理机构
代理人
主权项
地址
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