|
| US4034843 | 8 May 1975 | 12 Jul 1977 | Columbia Ribbon and Carbon Manufacturing Co., Inc. | Split correction ribbon and method |
| US4336767 | 6 Aug 1979 | 29 Jun 1982 | Bando Chemical Industries, Ltd. | Surface layer structure of an ink transfer device |
| US4678687 | 31 Oct 1984 | 7 Jul 1987 | Xerox Corporation | Thermal transfer printing sheets containing certain coating compositions thereof |
| US6399188 | 29 Oct 1999 | 4 Jun 2002 | Porex Corporation | Sintered porous plastic material |
