| Patents for B43K 24 - Mechanisms for selecting, projecting, retracting or locking writing units (2,268) |
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| 03/15/1989 | EP0307368A1 Writing instrument with a writing unit enclosed in a gripping body |
| 03/14/1989 | US4812069 Writing implement having built-in paper dispenser |
| 02/01/1989 | CN2031757U Chuck pen with liquid ink core |
| 12/29/1988 | WO1988010198A1 Writing utensil |
| 12/14/1988 | EP0294823A1 Swing-type mechanical pencil |
| 12/13/1988 | US4790678 Mechanism for extruding and retracting a writing member of a writing instrument |
| 11/30/1988 | EP0293343A1 Ball pen including a cam mechanism for actuating its writing tip |
| 11/22/1988 | US4786197 Twist actuated writing instrument |
| 09/22/1988 | WO1988006976A1 Writing implement having built-in paper dispenser |
| 09/20/1988 | CA1242168A1 Pen |
| 08/02/1988 | US4761090 Tubular writing pen tip with adjustment means |
| 07/26/1988 | US4759650 Retractable marking pen with tip protection mechanism |
| 07/14/1988 | DE3644714A1 Ball-point pen |
| 06/15/1988 | EP0271249A1 Rotary knock type mechanical pencil |
| 06/14/1988 | CA1238013A1 Ball-point pen |
| 05/26/1988 | DE3639592A1 Writing instrument, in particular ball-point pen with style-shaped casing |
| 05/04/1988 | CN87206256U Ball pen |
| 04/26/1988 | USRE32656 Writing instrument with fastening means |
| 04/19/1988 | US4738557 Writing device with multiple writing elements |
| 04/06/1988 | CN87104631A Writing instrument |
| 03/30/1988 | EP0261114A1 Recording instrument. |
| 03/08/1988 | US4729686 Flexible pen with sliding sleeve |
| 03/08/1988 | US4729685 Writing instrument with press mechanism and magnetic catch |
| 03/02/1988 | EP0257883A1 Dual refill writing utensil |
| 02/24/1988 | EP0256244A1 Writing instrument with an actuating mechanism |
| 01/13/1988 | EP0252694A1 Writing instrument |
| 01/05/1988 | US4717275 Writing instrument with a retractable clip |
| 12/10/1987 | DE3618602A1 Holder for rod-shaped articles |
| 11/12/1987 | DE3705098A1 Pen |
| 10/21/1987 | EP0241928A1 A pocket writing instrument having a body retractable by means of a hinged flap |
| 09/10/1987 | DE3705097A1 Pen with writing refill |
| 09/08/1987 | US4692046 Pen with selective multi-color cores |
| 09/03/1987 | DE3606336A1 Writing instrument with a housing |
| 08/27/1987 | DE3605818A1 Writing instrument, especially ball-point pen |
| 08/12/1987 | EP0231893A1 Writing instrument |
| 08/12/1987 | EP0231521A1 Writing tool |
| 07/30/1987 | DE3543817A1 Ball point pen |
| 07/14/1987 | US4679954 Flexible pen with sliding sleeve |
| 07/07/1987 | US4678356 Extendable writing instrument |
| 06/25/1987 | DE3545166A1 Writing implement, such as a ballpoint pen and the like |
| 06/03/1987 | EP0224404A1 Writing instrument with a screw-on cap |
| 06/02/1987 | US4669904 Writing instrument with weight actuation |
| 05/14/1987 | DE3607986C1 Device for utilising a cylindrical push-out tube for pen-shaped adhesive |
| 04/22/1987 | EP0219001A1 Mechanical pencil |
| 04/01/1987 | EP0216438A1 Writing instrument with multiple writing elments |
| 03/31/1987 | US4653949 Writing or drafting instrument with cap actuator |
| 03/17/1987 | US4649820 Hand held impact printer |
| 02/04/1987 | EP0210537A2 Device for actuating part of a tool or the like |
| 02/04/1987 | EP0210300A1 Tubular pen point |
| 12/16/1986 | CA1215343A1 Writing instrument with movable closure |
| 12/09/1986 | US4627756 Lead propelling mechanism for a mechanical pencil |
| 12/04/1986 | WO1986007014A1 Recording instrument |
| 12/02/1986 | US4626118 Writing instrument with fastening means |
| 11/12/1986 | CN86101577A 笔 Pen |
| 11/05/1986 | EP0199802A1 Retractable implement closure |
| 10/08/1986 | EP0196381A1 Lead propelling mechanism for a mechanical pencil |
| 07/22/1986 | US4601599 Ball-point pen |
| 07/22/1986 | CA1208173A1 Marking instrument |
| 07/15/1986 | CA1207707A1 Projection-retraction mechanism for a writing instrument |
| 07/09/1986 | CN85201929U Step-by-step adjustable pencil |
| 06/17/1986 | US4595307 Retractable implement closure |
| 06/10/1986 | CA1205782A1 Writing instrument |
| 05/09/1986 | WO1986002598A1 Retractable implement closure |
| 05/07/1986 | CN85203572U Quick-writing device for more than double fold receipt |
| 04/08/1986 | US4580919 Flexible pen with sliding sleeve |
| 04/08/1986 | US4580918 Writing instrument having plural nibs with one being retractable |
| 03/04/1986 | US4573817 Mechanical pencil |
| 02/25/1986 | US4572688 Ball-point pen |
| 12/31/1985 | US4561184 School utensil and toy robot |
| 12/24/1985 | US4560297 Writing implement |
| 12/11/1985 | EP0163706A1 Writing instrument |
| 12/05/1985 | EP0093161A4 Correction fluid dispenser. |
| 11/26/1985 | CA1197216A1 Correction fluid dispenser |
| 11/05/1985 | US4551035 Marking instrument |
| 11/05/1985 | US4551034 Clip mount insert |
| 10/29/1985 | US4549827 Writing implement with two retractable cartridges |
| 10/01/1985 | US4544297 Ball point pen venting |
| 10/01/1985 | US4544295 Mechanical pencil with self-contained insert |
| 08/28/1985 | EP0153159A1 Writing instrument |
| 08/06/1985 | US4533272 Writing instrument with movable closure |
| 08/06/1985 | US4533271 Writing instrument with plural implements cam actuated |
| 07/31/1985 | EP0149747A1 Writing instrument |
| 07/16/1985 | US4529328 Projection-retraction mechanism for a writing instrument |
| 07/10/1985 | EP0147622A2 Marking implement |
| 06/19/1985 | EP0145678A2 Writing or drafting instrument |
| 06/19/1985 | EP0145608A2 Means for protracting or retracting a ballpoint associated with a fountain or a felt-tip pen |
| 05/23/1985 | WO1985002149A1 Writing instrument |
| 04/16/1985 | US4511273 Correction fluid dispenser having a retractable and lockable sealing tip |
| 10/30/1984 | US4479732 Writing instrument with sealing cap retained in tip |
| 10/23/1984 | CA1176605A1 Mechanical pencil |
| 10/09/1984 | US4475834 Writing instrument projectable by fluid pressure |
| 09/04/1984 | US4469462 Writing instrument with sealing tip |
| 08/01/1984 | EP0114407A2 Writing utensil with two writing points |
| 07/24/1984 | US4461590 Inertia pen |
| 07/11/1984 | EP0113274A1 Pens with exchangeable cartridges |
| 07/10/1984 | US4459056 Disposable pencil structure and method of sharpening pencil head |
| 03/01/1984 | EP0057686A4 Hand-held utensil. |
| 01/25/1984 | EP0099094A1 Ball-point pen |
| 01/03/1984 | US4424394 Carbonylation of arylmethyl halide, metal ironnitrosocarbonyl comp |
| 12/27/1983 | CA1159397A1 Instrument marker pen |