| Patents for B43L 9 - Circular curve-drawing or like instruments (2,793) |
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| 05/10/2005 | US6889440 Compass and compass-cutter with ratchet mechanism |
| 05/04/2005 | CN2696859Y Multi-function drawing instrument |
| 05/04/2005 | CN2696858Y Compasses for teaching |
| 05/04/2005 | CN2696857Y Instrument for drawing concentric circles |
| 05/03/2005 | US6886263 Auxiliary drafting instrument combination applicable to digital board |
| 04/21/2005 | WO2005035268A1 Multifunction gauge |
| 04/20/2005 | CN2694399Y Multifunctional pointer |
| 04/20/2005 | CN2693489Y Multipurpose compasses with ruler |
| 04/20/2005 | CN2693488Y Multipurpose compasses |
| 04/13/2005 | CN2691887Y Ellipsoid curve compasses |
| 04/07/2005 | US20050072008 Hand tool |
| 04/06/2005 | CN2690174Y Novel multifunction teaching tool |
| 03/29/2005 | US6871406 Protective member for compass pins |
| 03/23/2005 | CN2686864Y Compasses |
| 03/18/2005 | CA2441543A1 Template and method for trisecting an angle |
| 03/16/2005 | CN2685102Y Multifunction compasses |
| 03/16/2005 | CN2685101Y Multifunction compasses |
| 03/16/2005 | CN2685100Y Multifunction compasses |
| 03/16/2005 | CN2685099Y Multifunction compasses |
| 03/10/2005 | US20050050744 Retractable point compass |
| 03/09/2005 | CN2683398Y Calipers with calibrated scales |
| 03/09/2005 | CN2683397Y Calipers with calibrated scales |
| 03/09/2005 | CN2683396Y Shaft fixed form anti-skid teaching calipers |
| 03/09/2005 | CN2683395Y Multifunctional caliper |
| 02/23/2005 | CN2680473Y Safety needle compasses |
| 02/23/2005 | CN2680472Y Safety compasses arrangement with scale |
| 02/17/2005 | DE202004019255U1 Adjustable pair of compasses for drawing circle has two pivoted legs with propelling pencil on first leg and sharp pin on second leg and has adjustment spindle with right-hand and left-hand threads |
| 02/10/2005 | CA2538351A1 Cutting system |
| 02/09/2005 | CN2677188Y Rule gauge |
| 02/09/2005 | CN2677187Y Dual-purpose compass for round and ellipse |
| 02/02/2005 | CN2675417Y Band tape compass |
| 02/02/2005 | CN2675416Y Dustless blackboard |
| 01/26/2005 | CN2673667Y Twin core pencil compasses |
| 01/26/2005 | CN2673666Y Multifunction compasses pencil |
| 01/19/2005 | CN2671817Y 尺式圆规 Foot type compasses |
| 01/11/2005 | US6839974 Multi-function layout square with laser |
| 12/29/2004 | CN2666688Y Two-purpose instrument for drawing ellipse and circule |
| 12/29/2004 | CN2666687Y Educational beam compass |
| 12/29/2004 | CN2666686Y Compasses |
| 12/22/2004 | CN2664923Y Direct-reading combined multipurpose compass |
| 12/08/2004 | CN2661452Y Novel slide arm compasses |
| 12/08/2004 | CN2661451Y Novel compasses |
| 12/07/2004 | US6826846 Device for marking out a pattern on a surface |
| 11/30/2004 | US6823596 Template and method for trisecting an angle |
| 11/18/2004 | US20040226180 Compass and ellipsograph for persons with manual limitations |
| 11/17/2004 | CN2656153Y Compasses |
| 11/17/2004 | CN2656152Y Compasses capable of cutting circule |
| 11/10/2004 | CN2654370Y Pencil compass safety needle feet |
| 11/10/2004 | CN1544254A Circle sweeping circular-elliptic dual purpose compasses |
| 11/04/2004 | US20040216312 Cable compass |
| 10/27/2004 | CN2651003Y 教学圆规 Teaching compasses |
| 10/21/2004 | DE202004009101U1 Feng Shui compass for measurement, marking and analysis, includes graticule, individually-adjustable sheets, arrow and cursor ring assembly |
| 10/06/2004 | CN2645933Y Compasses |
| 10/06/2004 | CN2645932Y Pull type multifunctional compass for teaching |
| 09/08/2004 | CN2639015Y Compasses |
| 09/01/2004 | CN2637194Y Three-legged dual-purpose ellipsograph |
| 09/01/2004 | CN2637132Y Marking gauge capable of marking circle on slant face curved face |
| 08/18/2004 | CN2633592Y Two purpose compasses for elipse and circle |
| 08/11/2004 | CN2631776Y Compasses |
| 08/05/2004 | DE202004006009U1 Compass for presentation of geometry on school blackboard or similar has ball joint linked to permanent magnets |
| 08/04/2004 | CN2629992Y Drawing compasses with radium scale |
| 08/04/2004 | CN2629991Y Scaled vertical central leg arbitrary compasses |
| 08/04/2004 | CN2629990Y Rule type blackboard plotting compasses |
| 07/28/2004 | CN2628279Y Multifunction beam compass |
| 07/01/2004 | WO2004054817A1 Apparatus for controlling circular and elliptical movement |
| 06/30/2004 | CN2621940Y Teaching compasses |
| 06/02/2004 | CN2618776Y Multifunction compasses |
| 05/26/2004 | CN2617598Y Telescopic compasses |
| 05/26/2004 | CN2617592Y Compasses with pens |
| 05/12/2004 | CN2614931Y Compasses |
| 05/12/2004 | CN2614930Y Multifunction triangular compass |
| 05/06/2004 | WO2002057041A8 A hacksaw frame |
| 04/28/2004 | CN2613385Y Improved compasses |
| 04/21/2004 | CN2612546Y Automatic rotating calipers |
| 04/14/2004 | CN2611178Y Roller type compasses |
| 03/31/2004 | CN2608302Y Multifunctional portable compasses |
| 03/24/2004 | CN1484565A Hand tool |
| 03/17/2004 | CN2606682Y 圆规 Compasses |
| 03/04/2004 | DE20317989U1 Method for drawing curve segments of large radii has a disc rolling along a straight support ledge and with a drawing implement fitted into a radial slot |
| 03/04/2004 | DE20220725U1 Ball=point pen with retractable writing tip, has guide sleeve located between spring loaded cap and pen shaft |
| 03/03/2004 | CN2605131Y 多功能圆规 Multifunction compass |
| 03/03/2004 | CN1478661A Automatic digit display calliper |
| 02/18/2004 | CN1475373A Translation reducing pointless compass |
| 02/11/2004 | CN2602943Y Automatic digital indication compasses |
| 02/04/2004 | CN2602445Y Multifunctional teaching stick |
| 01/08/2004 | WO2004003465A1 School supply - universal |
| 12/31/2003 | CN2595586Y Novel compasses |
| 12/31/2003 | CN2595585Y Scale compasses |
| 12/24/2003 | DE20315256U1 Compasses for drawing circles and ellipses has a geared drive from the fixed point via an adjustable cross shaft and a gearing to the drawing point |
| 12/24/2003 | CN2594035Y Precisive compass |
| 12/24/2003 | CN2594034Y Multifunctional assembled compass |
| 12/23/2003 | USRE38354 Circle cutter |
| 12/17/2003 | CN2592398Y Compasses capable of matching with pencil having dividing-rule |
| 12/03/2003 | EP1365878A2 A hacksaw frame |
| 12/03/2003 | CN2589218Y Multifunctional callipers |
| 12/03/2003 | CN2589217Y Multifunctional sliding ruler |
| 11/26/2003 | CN2587668Y Slide proof compasser for teaching |
| 11/26/2003 | CN2587667Y Multi-function compasses |
| 11/19/2003 | CN1456446A Multifunctional compass |
| 11/12/2003 | CN2585766Y Miniature campass with radius scale and protractor |