Die-set combination for making pin-back badges
US4299019A · kind A · utility
6Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1979 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Mar 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53726
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention concerns a combination of mutually interfitting die and press-block elements adapted for manual use and operation with each other to produce a finished and permanent assembly of the separate components of a pin-back button or badge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.