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Date-reminder sheet
摘要
申请公布号
US2582355(A)
申请公布日期
1952.01.15
申请号
US19500190002
申请日期
1950.10.13
申请人
ALLAN RATNER
发明人
RATNER ALLAN
分类号
B42D5/04;B42D15/00;G09D3/00
主分类号
B42D5/04
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