Imaging peel apart element employing two photohardenable layers
US4347300A · kind A · utility
30Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1978 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | May 11, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/0073
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention relates to novel photosensitized sheet constructions which, upon exposure to an energy source through a screened image, can accurately and simultaneously reproduce said image in both its negative and positive forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.