|
| US3986970 | 26 Abr 1974 | 19 Oct 1976 | The Furukawa Electric Co., Ltd. | Solution for chemical dissolution treatment of tin or alloys thereof |
| US4130454 | 30 Sep 1977 | 19 Dic 1978 | | Etchant and process of etching with the same |
| US4161551 | 24 Mar 1977 | 17 Jul 1979 | Eaton Allen Corp. | Adhesively correctable transfer medium with delayed alteration resistance characteristics |
| US5346738 | 4 Nov 1992 | 13 Sep 1994 | X-Cal Corporation | Identification label with micro-encapsulated etchant |
| US5393447 | 9 Jul 1993 | 28 Feb 1995 | Henkel Corporation | Composition and process for desmutting and deoxidizing without smutting |
| US5720823 | 20 Dic 1994 | 24 Feb 1998 | Henkel Corporation | Composition and process for desmutting and deoxidizing without smutting |
| US6074570 | 21 Jun 1994 | 13 Jun 2000 | X-Cal Corporation | Method of marking using encapsulated etchant |
