|
| US4402150 | 11 mai 1981 | 6 sept. 1983 | Polaroid Corporation | Verification device |
| US4711690 | 18 déc. 1985 | 8 déc. 1987 | GAO Gesellschaft fur Automation und Organisation mbH | Method for making an identification card having features for testing in incident and transmitted light |
| US4892336 | 18 mars 1987 | 9 janv. 1990 | GAO Gesellschaft fuer Automation und Organisation mbH | Antifalsification document having a security thread embedded therein and a method for producing the same |
| US4935335 | 28 juil. 1988 | 19 juin 1990 | Dennison Manufacturing Company | Multiple imaging |
| US5237449 | 29 janv. 1991 | 17 août 1993 | Nelson Optics Company, Inc. | Biased lenticular sign system |
| US5689340 | 6 déc. 1995 | 18 nov. 1997 | Eastman Kodak Company | Apparatus and method for measuring alignment in lenticular media |
| US5699190 | 5 déc. 1995 | 16 déc. 1997 | Eastman Kodak Company | Lenticular media having spatially encoded portions |
| US6865834 | 24 oct. 2002 | 15 mars 2005 | Dai Nippon Printing Co., Ltd. | Display apparatus |