Coin mechanism exact change indicator apparatus
US4188961A · kind A · utility
5Cited by
19References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1977 |
| Grant date | Feb 19, 1980 |
| Priority date | — |
| Expiry date | Oct 18, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F5/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An apparatus for communicating the inability of a coin change making mechanism to return correct change in which the availability of coin denominations to make change is compared with the value of required change for a given transaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.