| Patents for G09B 23 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes (20,724) |
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| 10/13/1992 | US5154615 Educational toy |
| 10/07/1992 | EP0506685A1 Method and apparatus for simulation of a physical process. |
| 10/07/1992 | CN2118337U Anatomical model of cranial cavity |
| 10/07/1992 | CN2118336U Magnetic field demonstrating teaching apparatus |
| 10/07/1992 | CN2118335U Multifunctional point, line, plane projection demonstrating appliance |
| 10/07/1992 | CN1065148A Combined making method of birds ecologic specimens |
| 10/06/1992 | US5152692 Biofidelic manikin neck |
| 09/30/1992 | CN2117642U Combined mathematical teaching instrument for primary school |
| 09/23/1992 | CN2116942U Eyeball image formation indicator |
| 09/23/1992 | CN2116941U Temperature sensing float |
| 09/23/1992 | CN2116940U Torricelli theorem displaying apparatus |
| 09/23/1992 | CN2116939U Cohension force displaying apparatus |
| 09/23/1992 | CN2116938U Displaying apparatus for teaching travel distance problem |
| 09/22/1992 | US5149270 Apparatus for practicing surgical procedures |
| 09/17/1992 | WO1992015979A1 Computer controlled positive displacement pump for physiological flow simulation |
| 09/09/1992 | CN2115567U Proof device for law of gas nature |
| 09/08/1992 | US5145378 Pendulum principle demonstration apparatus |
| 09/03/1992 | DE4103374C1 Vibratory model for siting human - has main masses coupled by sprung damping paths, and ancillary mass at nodal point between first spring and damper |
| 09/02/1992 | CN2114868U Foldable teaching aid sewing plate |
| 09/02/1992 | CN2114867U Student composite stereo model |
| 09/02/1992 | CN1064168A Air-cushion slider |
| 08/27/1992 | DE4205319A1 Model of thrust crank engine - has drive worked by force of gravity using glass marble |
| 08/27/1992 | DE4200184A1 Convertible body of tetrahedra of isosceles and right angle triangles |
| 08/27/1992 | DE4105892A1 Simulation training appts. for surgery - comprises sealed housing and cover releasably connected to housing, excess pressure being formable in housing, and having flat insert in cover top side opening |
| 08/26/1992 | EP0499744A2 Electrode placement training system |
| 08/26/1992 | CN2114201U Practical combination model for solid geometry for middle-school students |
| 08/26/1992 | CN1063956A Manikin of holographic-embryo acupoint regions |
| 08/26/1992 | CN1063955A Manikin of holographic-embryo acupoints |
| 08/26/1992 | CN1063954A Hand model of holographic-embryo acupoints |
| 08/26/1992 | CN1063953A Hand model of holographic-embryo acupoint regions |
| 08/25/1992 | US5141442 Apparatus and didactic method for teaching and showing primary orbital phenomena and various movements |
| 08/20/1992 | WO1992013588A1 Method of evaluating cardioprotective agents |
| 08/19/1992 | EP0499125A2 Training apparatus for the practice of puncturing blood vessels |
| 08/19/1992 | CN2113531U Rotating inertia experiment demonstrating instrument |
| 08/19/1992 | CN2113530U Prism demonstrating mould |
| 08/18/1992 | US5139455 Visual toy having a reflective surface for exhibiting a variable coloration in response to orientation of the toy |
| 08/12/1992 | CN2112869U Electromagnetic wave interference, diffraction, polarization demonstration device |
| 08/11/1992 | US5137459 Device for conducting experimental eye operations |
| 08/11/1992 | US5137458 Electrode placement training system |
| 08/05/1992 | EP0496883A1 Formation method for mirage phenomenon |
| 08/05/1992 | CN2112188U Model for easy studying taiji pattern |
| 08/05/1992 | CN1017758B Projector for primary battery |
| 08/05/1992 | CN1017757B Piston type momentum law tester |
| 08/04/1992 | US5135400 Vivarium for ecosystem teaching purposes and recreational observation |
| 07/29/1992 | CN2111546U Sinking gas stored generator |
| 07/29/1992 | CN2111545U Solid geometry teaching acid |
| 07/23/1992 | WO1992011911A1 Transformable body |
| 07/23/1992 | WO1992011805A1 Vascular impedance measurement instrument |
| 07/22/1992 | CN2110903U Demonstrator for joule's law |
| 07/22/1992 | CN2110902U Multifunctional demonstration gun |
| 07/21/1992 | US5131849 Teaching board apparatus |
| 07/21/1992 | CA1305515C Apparatus for demonstrating and studying the operation of a fuelcell |
| 07/15/1992 | CN2110258U Motion teaching aid composing protein controlled by gone |
| 07/15/1992 | CN2110257U Multi-type waveform signal generator |
| 07/15/1992 | CN2110230U Sensitive electronic pointer |
| 07/15/1992 | CN1062802A Arrangement for studying circuit |
| 07/12/1992 | CA2058776A1 Electrode placement training system |
| 07/09/1992 | WO1992011606A1 Method and system for thermal modelling of a component |
| 07/08/1992 | CN2109607U Changeable geometric figure demonstrating instrument |
| 07/08/1992 | CN2109606U Non spreading three-dimensional model teaching tool |
| 07/01/1992 | CN2108975U Universal circuit board |
| 07/01/1992 | CN2108974U Multifunctional demonstration for electrostatic field |
| 07/01/1992 | CN2108973U Wind, rain, thunder, electricity comprehensive teaching experiment apparatus |
| 06/26/1992 | CA2043884A1 Sport motion developing method |
| 06/24/1992 | CN2108345U Wedge isopachous interferential demonstrator |
| 06/24/1992 | CN2108344U Combined electromagnetic element learning aid for middle school physics |
| 06/24/1992 | CN2108343U Small nozzle work-state-changing test table |
| 06/24/1992 | CN2108342U Solid, liquid and gas expansion-and-contraction multifunction demonstrator |
| 06/17/1992 | CN2107691U Five-function teachine aid stethoscope |
| 06/11/1992 | DE4039098A1 Measuring and evaluating stato-dynamic variations in biological function groups - applying directed force and measuring segmental movements and micromotions electronically |
| 06/10/1992 | CN2107046U Tester for demonstration of atmos series |
| 06/09/1992 | US5120229 Dental teaching model |
| 06/04/1992 | DE4035452A1 Pulse flow curve modulator for blood flow measuring - has gear wheel pump, expansion chamber with pressure monitor and interface for pressure curve plotter |
| 06/03/1992 | EP0488631A1 Apparatus for producing plural streams of liquid droplets |
| 06/03/1992 | EP0488192A1 Determination of vertebral bone mineral density at the lumbar region by means of a calibration phantom |
| 06/03/1992 | CN2106400U Curve demonstrating instrument for teaching |
| 06/03/1992 | CN1016908B Mirage demonstration instrument |
| 05/20/1992 | CN2105112U Lantern slide for showing form of myopia |
| 05/20/1992 | CN2105111U Naphthalene fusion testing apparatus |
| 05/20/1992 | CN2105110U Decision analyser |
| 05/19/1992 | US5114347 Mathematical function demonstrator boards |
| 05/14/1992 | DE4131598A1 Mathematic teaching aid simulating random events - has movable spring displaced along horizontal rail in front of linear scale |
| 05/13/1992 | EP0281582B1 System for sensing ions in aqueous solution |
| 05/13/1992 | CN2104485U Plant cell mitosis pursuits teaching aid |
| 05/13/1992 | CN2104482U 智力电子魔盒 Intelligence Electronic Box |
| 05/13/1992 | CN2103991U Acupuncture bone angle folding ruler |
| 05/12/1992 | US5112228 Vascular model |
| 05/07/1992 | DE4035187A1 Ultrasound contrast agent, vaccine, diagnostic or therapeutic agent |
| 05/06/1992 | CN2103844U Model educational appliance for duplication, transcription and translation of dna molecular structure |
| 05/06/1992 | CN2103843U Universal force demonstration device |
| 05/05/1992 | US5110297 Assembly system for demonstrating chemical structures |
| 04/29/1992 | CN2103181U Hologram embryo acupoint hand model |
| 04/29/1992 | CN2103180U Phase of moon demonstrating plate |
| 04/28/1992 | US5108293 Method and apparatus for displaying a beam of light |
| 04/28/1992 | US5108292 Relating to oral simulators |
| 04/28/1992 | US5108291 Supplementary teaching instruments |
| 04/23/1992 | DE4130478A1 Flat elements to make 3=D structures - are held together along edged by tensioned rubber ring |
| 04/22/1992 | EP0341253B1 Building blocks |
| 04/21/1992 | US5107229 Solid state oscillator for generating microwave signals |
| 04/16/1992 | WO1992006459A1 Training device for fluid technology |