One-write book assembly with removable insert
US4940257A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1989 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Oct 3, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D12/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A one write bookkeeping assembly has a folded binder with a pair of hinged panels, locating elements spaced along the length of the outer side edge of one panel, and a pocket opening at the fold line therebetween. A removable insert is seated in the binder and has a multiplicity of spaced rings and a multiplicity of record keeping sheets with perforations along one side and through which the rings extend. A pair of mounting panels are supported on the rings, one extending into the pocket and the other extending over the one panel and having apertures adjacent its outer edge through which the locating elements extend. A shingled assembly of overlapping elongated forms is disposed over the record keeping sheet and the forms have apertures along the one side thereof through which said locating elements extend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.