The file holder is closed on two or three sides and is made from a single one piece blank. The bottom corners of the file holder are reinforced to avoid popping out when filled to capacity. The blank may be used to make a file folder or a mailer.
申请公布号
US2014001245(A1)
申请公布日期
2014.01.02
申请号
US201213536153
申请日期
2012.06.28
申请人
MAKOFSKY MARVIN A.;MAKOFSKY ROBERT;MCCONNELL SARI MAKOFSKY
发明人
MAKOFSKY MARVIN A.;MAKOFSKY ROBERT;MCCONNELL SARI MAKOFSKY