A ribbon cassette having a body portion and a nose portion which pivots with respect to the body portion to obtain bi-color printing capability. The cassette also includes hinges and a fracturable member interconnecting the body portion and the nose portion. The fracturable member retains the nose portion...http://www.google.com.au/patents/US4088218?utm_source=gb-gplus-sharePatent US4088218 - Ribbon cassette with bi-color capability
