| Patents for G06C 1 - Computing aids in which the computing members form at least part of the displayed result and are manipulated directly by hand, e.g. abacus, pocket adding device (778) |
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| 07/12/2006 | CN1801027A Hybrid digit abacus using hybrid digit decimal and carry line digit engineering process |
| 07/05/2006 | CN1797384A Modern abacus |
| 07/05/2006 | CN1797383A Faceplate of electronic calculator convenient for plus minus method |
| 06/14/2006 | CN1786863A Simple calculating appliance |
| 05/24/2006 | CN2783390Y Nine-bead all function abacus |
| 05/10/2006 | CN2779528Y Teaching aid for mathematics initiatory training |
| 04/20/2006 | WO2006039864A2 A mixed digital abacus of mixed digital scale and carry line digital engineering method |
| 04/12/2006 | CN2771931Y Electronic calculator panel for convenient addition and substraction |
| 04/05/2006 | EP1643335A2 System and method for designing building structures with associated estimates and schedules |
| 03/08/2006 | CN1745355A Cylindrical tool cycle counter |
| 02/22/2006 | CN2760624Y Logical calculus abacus |
| 02/22/2006 | CN1243294C All-function quick multiplying calculation accumulating assembly |
| 02/08/2006 | CN2757198Y World general abacus |
| 02/01/2006 | CN2755662Y 算盘 Abacus |
| 01/24/2006 | US6988462 Memory assist device with clips |
| 11/02/2005 | CN2738294Y Two-purpose bead abacus for mental arithmetic |
| 10/27/2005 | US20050239023 Calculation training tool, and calculation training system |
| 10/19/2005 | CN2735417Y Counting board |
| 09/15/2005 | US20050198881 DFI-daily food intake bracelet (food counter) |
| 09/07/2005 | CN2724072Y Bindary and decimal system value converting abacus |
| 09/07/2005 | CN2724071Y Fee accuulator |
| 08/25/2005 | CA2458583A1 Food counter |
| 08/17/2005 | CN2718646Y Jiugong abacus |
| 08/09/2005 | US6926198 Wheel calculator |
| 08/09/2005 | US6926119 Folding steps |
| 07/06/2005 | CN2708352Y Improved decimal system abacus structure |
| 06/08/2005 | CN1624652A Q-mixing scale, carry line digital engineering method and Q-mixing abacus |
| 06/01/2005 | CN2703270Y Abacus for children learning counting |
| 05/25/2005 | CN1619453A Multipurpose abacus |
| 05/19/2005 | DE202004019697U1 Abacus frame in plastic housing with hinged lid for teaching or learning arithmetic |
| 05/11/2005 | CN1614552A Add/bias Q carrying system, carrying digit engineering method and abacus therefor |
| 05/03/2005 | US6886740 Apparatus for calculating time periods |
| 02/23/2005 | CN2681184Y Digital abacus |
| 01/20/2005 | WO2005006167A1 Apparatus for detecting moves of counter for electric abacus |
| 01/11/2005 | US6840439 Fraction exploration device |
| 01/05/2005 | CN1560712A Abacus |
| 12/30/2004 | US20040261277 Estimating apparatus |
| 12/30/2004 | DE102004019657A1 Overhead-Abakus Overhead abacus |
| 09/30/2004 | DE202004006577U1 Adding machine for teaching children to count and add comprises parallel paths in which balls are placed with sliders, which have holes matched to the ball diameters, arranged perpendicular to the paths |
| 09/22/2004 | CN2643363Y Serial multifunctional teaching counting calculator for students |
| 09/15/2004 | CN2641690Y Novel structure for abacus |
| 09/02/2004 | US20040169070 Wheel calculator |
| 09/01/2004 | CN1525705A Native WI-FI architecture for 802.11 networks |
| 08/19/2004 | DE202004007689U1 Indicator disc for diabetics, relates insulin injection, the interval before eating, and food intake before sleeping, in terms of blood sugar, for both normal and fast-acting insulin |
| 07/07/2004 | CN1156769C Calculator with automatic date memory and calulation functions |
| 06/02/2004 | EP1424829A2 Native Wi-Fi architecture for 802.11 networks |
| 05/27/2004 | US20040103278 Native wi-fi architecture for 802.11 networks |
| 05/27/2004 | CA2744972A1 Native wi-fi architecture for 802.11 networks |
| 05/19/2004 | CN2616930Y Nine-bead digital abacus |
| 04/22/2004 | WO2004034306A1 Disc calculator for determining the final size of an embroidered design |
| 04/14/2004 | CN2611955Y Special abacus for child |
| 03/30/2004 | US6712264 Wheel calculator |
| 03/30/2004 | CA2237455C Foldable geostationary satellite antenna pointing guide and method |
| 03/11/2004 | DE20320086U1 Apparatus for calculating fees such as for legal processes using a card with a rotating disk |
| 01/21/2004 | CN2600848Y 算盘框架 Abacus frame |
| 01/21/2004 | CN2600847Y Abacus with electronic counter |
| 12/10/2003 | CN2591658Y Beads mental arithmetic educational aids |
| 12/02/2003 | US6655578 Instrument for computing proportions of an original recipe |
| 11/18/2003 | US6648219 Hand held pipe bending calculator |
| 11/05/2003 | CN2585296Y Portable and folding type abacus |
| 10/29/2003 | CN2583712Y Automatic arriving station reporting using computer for bus apparatus |
| 08/20/2003 | CN2567616Y Abacus of nine-bead on one shaft |
| 08/13/2003 | CN2566315Y 一种算盘 One kind of abacus |
| 08/06/2003 | CN2565061Y Adjustable abacus |
| 07/23/2003 | CN2562212Y Dictionary style loan counter |
| 06/25/2003 | CN2557992Y Abacus box |
| 05/28/2003 | CN1109947C Multifunctional plus and minus abacus |
| 05/15/2003 | WO2003040850A1 Estimating apparatus |
| 05/13/2003 | US6561415 Calorie management system |
| 05/07/2003 | CN2549512Y Abacus for pupil |
| 04/23/2003 | CN2546214Y Ruler for student use |
| 04/23/2003 | CN2545988Y Human X-ray photographical slide rule |
| 04/10/2003 | US20030066873 Instrument for computing proportions of an original recipe |
| 03/05/2003 | CN2539213Y Rolled flexible calculator |
| 02/06/2003 | US20030024974 Wheel calculator |
| 02/05/2003 | CN2534614Y Computing aid for children |
| 01/30/2003 | US20030019115 Creatinine clearance calculator |
| 01/29/2003 | CN2533499Y 数码算盘 Digital abacus |
| 01/28/2003 | US6511066 Apparatus and method for scoring dart games |
| 12/26/2002 | US20020197590 Arrangement for abacus-like calculation |
| 12/05/2002 | US20020182366 Wheel calculator |
| 11/27/2002 | CN2522955Y Combined digit, quantity and figure training teaching-aid |
| 10/23/2002 | CN2518137Y Multifunctional abacus |
| 10/08/2002 | US6460762 Wheel calculator |
| 10/02/2002 | CN2514383Y Digital abacus |
| 10/02/2002 | CN2514382Y Portable foldable abacus |
| 10/02/2002 | CN1372178A All-function quick multiplying and dividing calculation digital accumulating assembly |
| 08/28/2002 | CN2508276Y Abacus moving coding device |
| 08/28/2002 | CN2508275Y Abacus local clearing device |
| 08/21/2002 | CN2507047Y Four place separated mental arithematic abacus |
| 06/26/2002 | CN2497352Y Three-segmented abacus |
| 06/12/2002 | CN1353354A Method for encrypting digitalized Chinese-character information |
| 06/12/2002 | CN1353348A Calculator with automatic date memory and calculation functions |
| 05/29/2002 | CN2493962Y Electronic abacus |
| 05/08/2002 | CN2490616Y Memory abacus |
| 05/01/2002 | CN2489397Y Multifunctional abacus |
| 04/24/2002 | CN2488095Y Dual-purpose bead mental arithmetic abacus |
| 03/21/2002 | DE10133645A1 Petrol to oil ratio calculator uses discs with scales that are turned in a sleeve |
| 01/02/2002 | CN2469484Y Remote-controller with computer |
| 01/02/2002 | CN2469483Y Automatic stretching computer |