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发明名称
Envelope booklet
摘要
申请公布号
US2237205(A)
申请公布日期
1941.04.01
申请号
US19400315008
申请日期
1940.01.22
申请人
LLOYD WASSELL FRANK
发明人
WASSELL FRANK LLOYD
分类号
B42D5/00;B42D5/02;B42D15/08
主分类号
B42D5/00
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