|
2017
|
Invention
|
Security sheet or document having one or more enhanced watermarks. The invention relates to a sec... |
|
2014
|
Invention
|
A security sheet or document having one or more enhanced watermarks. The invention generally rela... |
|
|
Invention
|
Security sheet or document having one or more enhanced watermarks. The invention generally relate... |
|
|
Invention
|
Laser marked device. An optical device projecting one or more synthetically magnified images that... |
|
2012
|
Invention
|
A laser marked device. An optical device projecting one or more synthetically magnified images th... |
