| Patents for B43K 24 - Mechanisms for selecting, projecting, retracting or locking writing units (2,268) |
|---|
| 11/09/1983 | EP0093161A1 Correction fluid dispenser |
| 05/11/1983 | WO1983001600A1 Correction fluid dispenser |
| 05/10/1983 | US4382706 Mechanical pencil |
| 04/26/1983 | US4381158 Writing instrument |
| 03/29/1983 | US4378171 Ball-point pen |
| 03/22/1983 | US4377349 Ball point pen |
| 12/07/1982 | US4362410 Mechanical pencil |
| 11/30/1982 | CA1136580A1 Ball-point pen |
| 11/16/1982 | US4359291 Multicolor pen |
| 10/19/1982 | CA1133851A1 Retractable pen mechanism |
| 10/05/1982 | US4352580 Knock-out type mechanical pencil with retractable eraser |
| 08/18/1982 | EP0057686A1 Hand-held utensil |
| 08/10/1982 | US4343559 Retractable mechanism for a writing element |
| 03/04/1982 | WO1982000614A1 Hand-held utensile |
| 02/16/1982 | US4315695 Inertia pen with slidable sleeve |
| 01/21/1982 | WO1982000115A1 Propelling pencil |
| 12/29/1981 | CA1115237A1 Pen construction |
| 12/23/1981 | EP0042289A1 Improved instrument marker pen |
| 12/08/1981 | CA1113888A1 Compound writing instrument |
| 09/22/1981 | US4290707 Writing instrument having multiple writing elements |
| 06/16/1981 | US4274102 Multi-element writing instrument |
| 06/16/1981 | US4273458 Writing implement |
| 06/16/1981 | CA1103212A1 Writing instrument |
| 06/02/1981 | US4270870 Mechanical pencil with chuck closing by normal writing grip |
| 06/02/1981 | US4270869 Composite writing instrument |
| 05/26/1981 | US4269524 Mechanical pencil |
| 05/19/1981 | US4268183 Composite writing instrument |
| 05/12/1981 | US4266881 Pen with retractable point |
| 04/08/1981 | EP0026277A1 Ball-point pen |
| 04/08/1981 | EP0026212A1 Pen construction |
| 02/24/1981 | CA1096334A1 Retractable writing instrument |
| 02/10/1981 | CA1095460A1 Composite writing instrument |
| 01/07/1981 | EP0021801A1 A retractable mechanism for a writing element |
| 12/02/1980 | US4236418 Multi-element writing instrument |
| 10/14/1980 | US4227823 Writing instrument |
| 10/14/1980 | US4227822 Composite writing instrument |
| 10/07/1980 | CA1087200A1 Preparation of pyrrolidine and pyrrolidin-2-one derivatives |
| 10/02/1980 | WO1980002011A1 Pen construction |
| 09/09/1980 | US4221491 Pen construction |
| 09/09/1980 | US4221490 Two ended retractable writing instrument |
| 08/19/1980 | US4218153 Mechanical pencil |
| 07/10/1980 | WO1980001369A1 Pen which also may house a stamp or some other object |
| 07/08/1980 | US4211500 Tip-pushed type mechanical pencil |
| 05/13/1980 | US4202641 Multiple-point writing instrument including a mechanical pencil unit |
| 04/29/1980 | US4200403 Writing implements |
| 01/29/1980 | US4185933 Flat, multi-element writing instrument |
| 01/08/1980 | US4182042 Marking device |
| 12/04/1979 | US4176979 Ball-point pen |
| 11/06/1979 | US4173569 Preparation of pyrrolidine and pyrrolidin-2-one derivatives |
| 10/30/1979 | US4172674 Writing instrument |
| 09/18/1979 | CA1062662A1 Writing instrument with tapered coupling means between housing and mechanism |
| 08/28/1979 | US4165941 Mechanical pencil |
| 07/17/1979 | US4161374 Twist retractable writing implement |
| 04/10/1979 | US4148591 Writing unit locking mechanism in a multiple-point writing implement including a mechanical pencil unit |
| 11/14/1978 | CA1042389A1 Clip actuated retractable ball point pen |
| 10/24/1978 | CA1041044A1 Fountain pen cartridge replacement device |
| 09/19/1978 | US4115015 Retractable pen with internal tip seating |
| 03/21/1978 | US4080077 Multicolor writing instrument |
| 05/24/1977 | US4025204 Writing implement |
| 05/10/1977 | US4022535 Actuator structure for ball-point pens and other writing instruments |
| 04/12/1977 | US4017195 Writing implement and method of manufacturing the same |
| 01/04/1977 | US4000950 Writing instrument |
| 11/02/1976 | US3989389 Multi-color mechanical writing instrument |
| 10/12/1976 | US3985457 Writing implement having a replaceable refill |
| 05/11/1976 | US3955893 Writing instrument with projecting and retracting mechanism |
| 04/20/1976 | US3951554 Writing appliance |
| 03/16/1976 | US3944371 Retractable writing implement |
| 03/02/1976 | US3941490 Ball point pen |