Apparatus for recordkeeping
US5127879A · kind A · utility
Inventor
Key dates
| Filing date | Apr 6, 1989 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Apr 6, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/124
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A recordkeeping book has a front cover, a back cover and an accordion-folded strip of paper extending therebetween. The strip is divided longitudinally into a "left" portion, disposed within the covers, and a "right" portion, extending out from the covers. Information entered on the front surface of the left portion is reproduced on the back surface of the right portion when the right portion is folded underneath the left portion. Information entered on the back surface of the left portion is reproduced on the front surface of the right portion when the right portion is folded over the left portion. Means for effecting the reproduction of information entered on both surfaces of the left portion onto both surfaces of the right portion are disclosed and include a "male", or "CB" carbonless copy treatment applied to the front and back surfaces of the left portion, and a "female" or "CF" carbonless copy treatment applied to the front and back surfaces of the right portion. Method and apparatus are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.