| Patents for B43L 9 - Circular curve-drawing or like instruments (2,793) | |
|---|---|
| 05/2011 | |
| 05/18/2011 | CN201833762U Teaching compasses |
| 05/18/2011 | CN201833761U Compasses |
| 05/18/2011 | CN201833760U Novel compasses |
| 05/18/2011 | CN201833759U Dual-purpose compass |
| 05/18/2011 | CN201833758U Compass with ruler |
| 05/18/2011 | CN201833757U Multipurpose compasses |
| 05/18/2011 | CN201833755U Combined drawing rule |
| 05/18/2011 | CN201833752U Multi-purpose ruler |
| 05/18/2011 | CN201833747U Stationery |
| 05/18/2011 | CN201833721U Multifunctional practical pen |
| 05/18/2011 | CN102059893A Multifunctional ruler |
| 05/12/2011 | DE202008018058U1 Zirkel mit einer insbesondere punktförmigen Lichtquelle an zumindest einem Zirkelarm Circle with a particular point light source at at least one Zirkelarm |
| 05/11/2011 | CN201829087U Mathematical teaching aid |
| 05/11/2011 | CN201824729U Compasses capable of measuring radius |
| 05/11/2011 | CN201824728U Multifunctional compass |
| 05/11/2011 | CN201824727U Compasses |
| 05/11/2011 | CN201824723U Multi-purpose ruler for teaching |
| 05/11/2011 | CN102049942A Anti-skidding compass |
| 05/11/2011 | CN102049941A One-legged compass |
| 05/10/2011 | US7937843 Compass having a leg joint and information bearing surfaces |
| 05/04/2011 | CN201816354U Teaching aid |
| 05/04/2011 | CN201816353U Compasses used on blackboard |
| 05/04/2011 | CN201816352U Teaching compasses |
| 05/04/2011 | CN201816351U Three-legged compasses |
| 05/04/2011 | CN201816350U Compasses |
| 05/04/2011 | CN201816349U Compass |
| 05/04/2011 | CN201816323U Multifunctional pen |
| 04/2011 | |
| 04/27/2011 | CN201808357U Compasses |
| 04/27/2011 | CN201808356U Novel compass |
| 04/27/2011 | CN201808355U Compass for preventing formation of small hole on paper |
| 04/27/2011 | CN201808351U Integral compasses-ruler |
| 04/27/2011 | CN201808337U Compasses pen |
| 04/27/2011 | CN201808317U Multifunctional pen for examination |
| 04/20/2011 | CN201800394U Tap water pipeline survey plotter |
| 04/20/2011 | CN201800393U Rectangular protractor for students |
| 04/20/2011 | CN201800392U Semicircular combined sector for math teaching |
| 04/20/2011 | CN201800391U Ruler type compasses |
| 04/20/2011 | CN201800389U Circle-drawing ruler |
| 04/13/2011 | CN201792647U Compasses |
| 04/13/2011 | CN201792646U Multifunctional compass |
| 04/13/2011 | CN201792645U Auxiliary device for compasses |
| 04/13/2011 | CN201792642U Compass ruler |
| 04/13/2011 | CN201792640U Multi-purpose ruler |
| 04/13/2011 | CN201792624U Pen with compass |
| 04/13/2011 | CN102009551A Double-end pen and clamp thereof |
| 04/06/2011 | CN201784343U Horizontal compass for blackboard |
| 04/06/2011 | CN201784342U Multipurpose compasses |
| 04/06/2011 | CN201784341U Compass |
| 04/06/2011 | CN201784340U Circle drawing device |
| 04/06/2011 | CN201784339U Compasses ruler |
| 04/06/2011 | CN201784338U Ruler |
| 04/06/2011 | CN201784319U Pen |
| 03/2011 | |
| 03/31/2011 | DE202010016291U1 Zeichengerät an großflächigen Tafeln Character device for large-area panels |
| 03/30/2011 | CN201777044U Safety needle for compass |
| 03/30/2011 | CN201777043U Combined type compasses used for mathematical teaching |
| 03/24/2011 | DE202010016292U1 Zirkel für den Gebrauch an großflächigen Tafeln Compass for use on large tables |
| 03/23/2011 | CN201769557U Teaching compass |
| 03/23/2011 | CN201769556U Compasses capable of facilitating radius determination |
| 03/23/2011 | CN201769555U Multifunctional mathematical ruler |
| 03/23/2011 | CN201769551U Multifunctional ruler |
| 03/23/2011 | CN201769550U Combined ruler |
| 03/23/2011 | CN201769525U Pen |
| 03/16/2011 | CN201761222U Multifunctional teaching compasses |
| 03/16/2011 | CN201761220U Universal ruler |
| 03/16/2011 | CN201761219U Ruler compasses |
| 03/16/2011 | CN201761217U Multifunctional teaching scale |
| 03/16/2011 | CN201761193U Foldable multifunctional pen |
| 03/10/2011 | DE202011000011U1 Zirkel Circle |
| 03/10/2011 | DE202010001554U1 Zirkel mit Schenkeln aus Tragarmen mit aufgesetzten Deckschalen Circle with arms from carrying arms with attached cover sheets |
| 03/09/2011 | CN201756000U Compass capable of drawing graphics in different colors |
| 03/08/2011 | US7900364 Drawing apparatus utilizing measuring tape |
| 02/2011 | |
| 02/23/2011 | CN201751203U Compass |
| 02/23/2011 | CN201751202U Compasses |
| 02/16/2011 | CN201745333U Multipurpose training aid |
| 02/16/2011 | CN201745330U Central-angle radius compasses |
| 02/16/2011 | CN201745329U Multifunctional foldable ruler |
| 02/16/2011 | CN201745328U Multifunctional ruler |
| 02/16/2011 | CN101973176A Compasses |
| 02/09/2011 | CN201736662U Multifunctional ruler |
| 02/09/2011 | CN201736654U Compasses for drawing on blackboard |
| 02/09/2011 | CN201736653U Pair of compasses exerting no damage on paper |
| 02/09/2011 | CN201736652U Compass capable of rapidly drawing single circle or double circles |
| 02/09/2011 | CN201736651U Compass capable of directly measuring radius or chord length |
| 02/09/2011 | CN201736650U Teaching compass |
| 02/09/2011 | CN201736649U Ruler instrument |
| 02/09/2011 | CN201736648U Compasses |
| 02/09/2011 | CN201736647U Compass |
| 02/09/2011 | CN201736642U Multifunctional straight ruler |
| 02/09/2011 | CN201736621U Automatic pencil |
| 02/09/2011 | CN201736610U Pen with compasses |
| 02/09/2011 | CN201736609U A pen |
| 02/09/2011 | CN201736604U Pen |
| 02/09/2011 | CN201734075U Sliding cover type compasses box |
| 02/02/2011 | CN201732486U Multi-functional pointer |
| 02/02/2011 | CN201728995U Multifunctional teaching compass |
| 02/02/2011 | CN201728994U Safe, easily-positioned and telescopic compasses for mathematical education |
| 02/02/2011 | CN201728993U Scale compass |
| 02/02/2011 | CN201728992U Moving compasses |
| 02/02/2011 | CN201728991U Compass |
| 02/02/2011 | CN201728988U Geometric drawing ruler |