Method for the manufacture of record stampers
US4479853A · kind A · utility
2Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1984 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | Mar 29, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D1/20
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An improved method for the manufacture of stampers having formed inner and outer edges is provided in which the inner and outer edges are electroformed in the required configuration by using electroforming guides at the inner edge, the outer edge and preferably both edges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.