发明授权
- 专利标题: Bookbinding case, the covers of which consist of cardboard, which is doubled by folding it along the edges
- 专利标题(中): 装箱盒,其盖子由纸板组成,通过沿边缘折叠将其翻倍
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申请号: US70509546申请日: 1946-10-23
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公开(公告)号: US2517640A公开(公告)日: 1950-08-08
- 发明人: PIETER D HUY FRANCISCUS
- 申请人: PIETER D HUY FRANCISCUS
- 专利权人: D Huy Franciscus Pieter
- 当前专利权人: D Huy Franciscus Pieter
- 优先权: NL2517640X 1943-10-26
- 主分类号: B42F13/00
- IPC分类号: B42F13/00