| Patents for B43L 23 - Sharpeners for pencils or leads (1,940) |
|---|
| 12/28/1994 | CN2186171Y Multipurpose pencil sharpener |
| 12/28/1994 | CN2186170Y Pencil sharpener |
| 12/14/1994 | CN1026968C Automatic propelling pencil with core automatic sharpening and making method |
| 12/07/1994 | CN2184577Y Testing mechanism for sharpening pencil tip |
| 11/29/1994 | US5367777 Wood pencil sharpener and pocket holder |
| 11/23/1994 | CN2183276Y Pencil-sharpening device |
| 10/26/1994 | CN2180486Y Rotary pencil sharpener |
| 10/26/1994 | CN2180485Y Pencil sharpener with grinding board |
| 10/12/1994 | CN2179278Y Two-edge pencil-knife |
| 10/12/1994 | CN2179277Y Multi-hole pencil-knife |
| 10/12/1994 | CN2179276Y Combined pen-knife |
| 10/05/1994 | CN2178641Y Pencil sharpener with double blade |
| 10/05/1994 | CN2178640Y Reverse pencil sharpen knife |
| 09/14/1994 | CN2176915Y Rotary sharpener for moveable pencil |
| 08/30/1994 | CA2027343C Universal crayon sharpener |
| 08/10/1994 | CN2173715Y Separately turning type pencil sharpener |
| 07/13/1994 | CN2171504Y Multipurpose sharpener |
| 07/13/1994 | CN2171503Y Pencil sharpener |
| 07/06/1994 | CN2170858Y Combined tank type pencil sharpener |
| 07/06/1994 | CN1088874A Electric pencil sharpener |
| 06/29/1994 | CN2170218Y Pencil planer |
| 06/22/1994 | CN2169557Y Electric multiple edge pencil sharpener |
| 06/22/1994 | CN2169556Y Electric pencil sharpener |
| 06/15/1994 | CN2168734Y Automatic pencil shapener |
| 06/01/1994 | CN2166979Y 铅笔削笔器 Pencil sharpener |
| 05/11/1994 | EP0596239A1 Sharpener for pencils |
| 05/11/1994 | EP0596238A1 Sharpener for pencils |
| 04/13/1994 | CN2161484Y Pencil sharpener |
| 04/13/1994 | CN2161483Y Pencil sharpener |
| 04/06/1994 | CN2160557Y Pencil sharpener |
| 03/30/1994 | CN2159887Y Pencil sharpener |
| 03/30/1994 | CN2159886Y Pull cutting pencil sharpener |
| 03/23/1994 | CN2159320Y Pencil sharpener with automatic turning on and off electric power |
| 03/16/1994 | CN2158795Y Adjustable rotary pencil-sharpener |
| 03/02/1994 | CN2157874Y Pencil-sharpener for children |
| 02/23/1994 | CN2157054Y Hand double-hole multi-blade pencil sharpener |
| 02/23/1994 | CN2157053Y Planetype pencil sharpener |
| 02/23/1994 | CN2157052Y Motor-driven pencil sharpener capable of grinding lead |
| 02/16/1994 | CN2156056Y Pencil sharpener with sound and light alarm effect |
| 02/16/1994 | CN2156038Y Propelling pencil |
| 02/09/1994 | CN2155313Y Long-lead tip pencil sharpener |
| 01/26/1994 | CN2154185Y Pencil sharpener with grind stone and brush |
| 01/26/1994 | CN2154184Y Pencil sharpener |
| 01/19/1994 | CN2153477Y Pocket pencil sharpener |
| 12/29/1993 | CN2151021Y Pencil sharpener |
| 12/29/1993 | CN2151009Y Pencil holder with sharpener |
| 12/08/1993 | CN2148689Y Sharpener for pencils |
| 11/17/1993 | CN2146381Y Pencil sharpener |
| 11/10/1993 | CN2145716Y Pencil sharpener |
| 11/03/1993 | CN2145124Y Miniature pencil sharpener |
| 09/22/1993 | CN2142402Y Pencil knife |
| 09/08/1993 | CN2141775Y 铅笔刨 Pencil Sharpener |
| 09/08/1993 | CN2141774Y V-groove grinding wheel pencil sharpener |
| 09/01/1993 | CN2141364Y 自动铅笔卷笔刀 Automatic pencil sharpener |
| 09/01/1993 | CN2141363Y Non-easy cutting break pencil core sharpener |
| 08/17/1993 | CA1321325C Socket mounted pencil sharpener for cosmetic facial pencil |
| 08/04/1993 | CN2139527Y Pencil sharpener |
| 07/21/1993 | CN2138580Y Multifunction pencil sharpener |
| 07/21/1993 | CN2138579Y Four hole pencil sharpener |
| 06/30/1993 | CN2137210Y Dual purpose knife for planing and turning of pencils |
| 06/23/1993 | CN2136753Y Pencil sharpener |
| 06/02/1993 | CN2134931Y Multi-functional efficient pencil sharpener |
| 05/19/1993 | CN2133468Y Vertical pencil sharpener |
| 05/19/1993 | CN2133467Y Pencil sharpening unit |
| 05/19/1993 | CN1072138A Musical pencil sharpener |
| 05/12/1993 | CN2132635Y Sefety plane type pencil sharpener |
| 05/11/1993 | CA1317568C Applicator for soft materials |
| 05/05/1993 | CN2131719Y Pencil sharpener with music |
| 05/05/1993 | CN2131718Y Pencil sharpener |
| 05/05/1993 | CN2131717Y Pencil sharpener |
| 05/05/1993 | CN2131716Y Adjustable sliding ledge cover for chalk |
| 04/28/1993 | CN2130709Y Pencil sharpener |
| 04/27/1993 | US5205664 Lead-auto-sharpened propelling pencil and the making process thereof |
| 04/21/1993 | CN2130138Y Adjustable pencil sharpener |
| 04/14/1993 | CN2129697Y Arc straight sharpening universal pencil sharpener |
| 03/10/1993 | CN2127916Y Broching pencil sharpener |
| 03/03/1993 | CN2127671Y Plane for sharpening pencils |
| 02/03/1993 | CN2126704Y Pencil sharpener |
| 12/30/1992 | CN2126163U 可调铅笔刨 Adjustable pencil sharpener |
| 12/02/1992 | EP0515612A1 Eraser cleaning tool |
| 12/02/1992 | CN2123439U Pencil sharpener with grind stone |
| 12/01/1992 | US5167071 Cosmetic pencil sharpener |
| 11/18/1992 | CN2122072U Multifunctional pencil sharpener |
| 11/11/1992 | CN2121351U Universal pen-sharpener |
| 11/10/1992 | US5161587 Pencil sharpener with acoustical and lamplight indicating effect |
| 11/04/1992 | CN2120699U Easy pencil shappener |
| 10/14/1992 | CN2118648U Pencil sharpener |
| 10/14/1992 | CN2118647U Single side pressed knife free fixed pencil sharpener |
| 09/30/1992 | CN2117263U Multifunctional pencil sharpener |
| 09/29/1992 | US5151575 Electrically heated color crayon pointer |
| 09/23/1992 | CN2116593U Pencil sharpener with arc blade |
| 09/16/1992 | CN2115905U Cone screw pen-knife |
| 09/09/1992 | CN2115238U Multi-functional safety pencil sharpener |
| 09/02/1992 | CN2114578U Rotary pencil sharpener |
| 08/26/1992 | CN2113902U Electric pencil sharpener |
| 08/19/1992 | CN2113179U Pencil sharpener |
| 08/12/1992 | CN2112524U Ball head pencil sharpener |
| 08/12/1992 | CN2112523U Adjustable pencil sharpener |
| 08/12/1992 | CN2112522U Tool for grinding pencil core |
| 08/05/1992 | CN2111864U Non-breaking lead pencil sharpener |