| Patents for B43K 27 - Multiple-point writing implements, e.g. multicolour; Combinations of writing implements (2,153) |
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| 11/30/1994 | CN2183892Y Color ball-pen with single core |
| 11/29/1994 | US5368405 Non-mingling multicolor marker and its process |
| 11/16/1994 | CN2182741Y Pen with two end points |
| 11/02/1994 | CN2181402Y Double colour ball-point pen of roller type with information reeling function |
| 10/19/1994 | CN2179827Y 绘图笔 Pen |
| 10/12/1994 | CN2179266Y Fountain pen with two nibs |
| 10/12/1994 | CN2179265Y 组合笔 Combination pen |
| 10/05/1994 | CN2178632Y Multipurpose pen |
| 10/05/1994 | CN2178631Y Multipurpose pen |
| 10/05/1994 | CN2178627Y Multipurpose fountain pen |
| 09/21/1994 | CN2177598Y Fast drawing pen for standard body temp. and pulse |
| 08/17/1994 | CN2174331Y Double-nib multi colour writing appliance |
| 08/17/1994 | CN2174330Y Single-piece multi-colour repeatedly-usable pencil |
| 08/16/1994 | US5338123 Double-ended pen |
| 08/03/1994 | CN2173166Y Active three-purpose pen and rotary pen holder |
| 07/19/1994 | CA2000088C Dual writing element retractable pen |
| 07/06/1994 | CN2170848Y Flat pencil with double head |
| 06/15/1994 | CN2168725Y Multifunctional duplicative pen |
| 06/15/1994 | CN2168724Y Set of colour pens |
| 06/07/1994 | US5318372 Combination pen and pencil writing instrument |
| 05/25/1994 | CN2166007Y Six-colour pen |
| 05/18/1994 | CN2164998Y Mac pen |
| 05/11/1994 | WO1994009997A1 Writing instrument with simultaneous multicolour highlighting |
| 05/04/1994 | CN2163741Y Six-colour watercolour paintbrush |
| 04/27/1994 | CN2163070Y Multi-colour ink pen with two ends nibs on one penholder |
| 04/27/1994 | CN2163069Y Double-group dual-rail art designing pen |
| 04/26/1994 | US5306092 Marking pen with gradual-layer color effect |
| 04/20/1994 | CN2162360Y Pen cabable for drawing multi-parallel-line at one time |
| 04/13/1994 | CN2161474Y Dual-purpose pen |
| 03/31/1994 | WO1994006872A1 Assembly or set of different color inks and an assembly of writing instruments |
| 03/30/1994 | CN2159878Y Single multi-colour multi-head pen |
| 03/16/1994 | EP0587103A1 Writing implement with two writing elements |
| 02/23/1994 | CN2157040Y Multicolor fountain pen |
| 01/19/1994 | CN2153467Y Double lock direction and moving switch integral multicolour pen |
| 01/19/1994 | CN2153466Y Combined stationery |
| 01/12/1994 | CN2152676Y Stamp type medical pen |
| 12/29/1993 | CN2151010Y Multiple tips pen |
| 12/29/1993 | CN1079937A Siphon fountain writing brush with large tube penholder |
| 12/08/1993 | CN2148680Y Multi-purpose pen with dictionary |
| 11/24/1993 | CN2147115Y Fountain writing brush |
| 11/17/1993 | CN2146372Y 彩色笔 Color pen |
| 10/27/1993 | CN2144582Y Double end dual-purpose mechanical pencil |
| 10/13/1993 | EP0564666A1 Non-mingling multicolor marker and its fabrication |
| 09/16/1993 | WO1993017879A1 Nib units for pens |
| 09/15/1993 | CN2142070Y 扁笔 Flat pen |
| 09/08/1993 | CN2141769Y Multipurpose pen |
| 08/25/1993 | CN2140833Y Pen for drawing staff |
| 08/18/1993 | CN2140302Y Multi-refill adjustable ball-point pen |
| 08/11/1993 | CN2139893Y Pen for draw staff |
| 07/28/1993 | EP0553011A1 Writing instrument with mechanical pencil or ball point pen |
| 07/21/1993 | CN2138571Y Multicolour pencil |
| 06/22/1993 | US5221152 Writing instrument with cap |
| 06/16/1993 | CN2136141Y 双头钢笔 Double Pen |
| 06/16/1993 | CN1021210C Writing tool |
| 06/09/1993 | CN2135470Y Double-colour watercolour pen |
| 05/26/1993 | CN2134291Y Multi-colour fountain pen |
| 05/26/1993 | CN2134290Y Special control structure of multi-colour pen |
| 05/26/1993 | CN1020877C Color-blending-proof multi-colored pen and manufacturing method thereof |
| 05/12/1993 | CN2132628Y Example compose pen |
| 05/05/1993 | CN2131701Y Propelling pencil with multiple writing core feed mechanism |
| 05/05/1993 | CN2131700Y Multifunction chalk writting protective cover |
| 04/20/1993 | US5203638 Writing instrument for alternately writing in fluorescent transparent and nontransparent ink |
| 04/07/1993 | CN2129220Y Multi-colour writing implament |
| 03/31/1993 | CN1070368A Portable propelling pencil |
| 03/03/1993 | CN1069451A Stereo writing pen with multicolour lines |
| 12/30/1992 | CN2126157U 多功能笔 Multi-function pen |
| 12/10/1992 | DE4123990A1 Drawing implement for music lines - consists of holder with five parallel removable fixed pens in casing |
| 12/09/1992 | CN2124140U Dual-purpose pen |
| 12/02/1992 | CN2123429U Colour multifunction pen |
| 12/02/1992 | CN2123428U Multi-colur, multi-point writing pen |
| 11/18/1992 | CN1066242A Direct slide and push type composite pen with shaft and spring plate |
| 11/18/1992 | CN1066241A Direct slide type composite pen with coaxial spring plate fixing head |
| 11/18/1992 | CN1066240A Direct slide turning disc type composite pen |
| 11/18/1992 | CN1066239A Spring plate locating type composite pen |
| 11/18/1992 | CN1066238A Direct slide and push type composite pen with two spring fixing heads |
| 11/18/1992 | CN1066237A Direct slide and push type composite pen with coaxial spring plate |
| 11/18/1992 | CN1066236A Poke type composite pen |
| 11/18/1992 | CN1066235A Direct slide type composite pen with two fixing heads |
| 11/18/1992 | CN1066234A Poke-turning type composite pen |
| 11/18/1992 | CN1066233A Direct slide type composite pen with two spring fixing heads |
| 11/18/1992 | CN1066232A Multi-purpose composite pen with two writing ends |
| 11/18/1992 | CN1066231A Push and direct slide type turning disc composite pen |
| 11/18/1992 | CN1066230A Push and direct slide type composite pen |
| 11/18/1992 | CN1066229A Direct slide composite pen with double piston fixing head |
| 11/18/1992 | CN1066228A Pull-turning disc type composite pen |
| 11/18/1992 | CN1066227A Two writing cores composite pen with alter |
| 11/18/1992 | CN1066226A Two writing cores composite pen |
| 11/18/1992 | CN1066225A Push type composite pen with clamp head |
| 11/18/1992 | CN1066224A Revolving shaft type composite pen |
| 11/18/1992 | CN1066223A Push and turning type composite pen |
| 11/18/1992 | CN1066222A Revolving stretching type composite pen with double pen ends |
| 11/18/1992 | CN1066221A Turning type composite pen |
| 11/18/1992 | CN1066220A Revolving type composite pen |
| 11/18/1992 | CN1066219A Composite pen with composite sleeve |
| 11/18/1992 | CN1066218A Two-purpose bladder composite pen with double spring plate |
| 11/18/1992 | CN1066217A Two-purpose bladder poke-turning type composite pen |
| 11/18/1992 | CN1066216A Two-purpose bladder directly slid and turning disc type composite pen |
| 11/18/1992 | CN1066215A Two-purpose bladder single handle turning type composite pen |
| 11/18/1992 | CN1066214A Two-purpose bladder composite pen with pivot and spring plate |
| 11/18/1992 | CN1066213A Two-purpose bladder composite pen with alter |