Engraver's template
US4173075A · kind A · utility
10Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1978 |
| Grant date | Nov 6, 1979 |
| Priority date | — |
| Expiry date | Jan 16, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/2016
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An engravers template having a desired pattern therein with engraved portions and raised portions. An aluminum sheet is provided having an aluminum oxide layer on one side and a plastic layer on the opposite side. The desired engraved pattern is etched through the oxide layer and through the aluminum sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.