Referenced by|
| US4131373 | 10 Jun 1977 | 26 Dec 1978 | Liquid Paper Corporation | Typewriter ribbon cartridge | | US5044794 | 10 May 1989 | 3 Sep 1991 | Canon Kabushiki Kaisha | Ink ribbon cassette | | US5634606 | 5 Sep 1995 | 3 Jun 1997 | Koenig & Bauer-Albert Aktiengesellschaft | Press-on roller |
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