WHD Electronische Prueftechnik

Follow

Organization

Dresden, DE

Organizations

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Method of testing documents provided with optico-diffractively effe...
- Patent number 7,262,604
- Issue date Aug 28, 2007
- WHD Electronische Prueftechnik
- Frank Puttkammer
- G07 - CHECKING-DEVICES
Information Patent Grant
Security element structure for documents, devices for checking docu...
- Patent number 7,133,124
- Issue date Nov 7, 2006
- WHD Electronische Prueftechnik
- Frank Puttkammer
- G07 - CHECKING-DEVICES
Information Patent Grant
Method of testing documents provided with optico-diffractively effe...
- Patent number 7,129,709
- Issue date Oct 31, 2006
- WHD Electronische Prueftechnik
- Frank Puttkammer
- G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

Trademarklast 30 trademarks