| 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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| 05/17/1994 | US5312259 CPR mannequin |
| 05/11/1994 | EP0595963A1 Medical demonstration apparatus |
| 05/11/1994 | CN2164581Y Copper-zinc galvanic cell demonstration device |
| 05/11/1994 | CN2164580Y Trigonometrid function board |
| 05/11/1994 | CN2164579Y Composite object teaching board for mathematics of primary school |
| 05/10/1994 | US5310348 Suture demonstration portfolio |
| 05/04/1994 | CN2164088Y Multifunction manikin for medical departments |
| 05/04/1994 | CN2164087Y Arm model for intravenous puncture |
| 05/04/1994 | CN2164086Y Light distribution graphic measuring instrument |
| 05/04/1994 | CN2164085Y Centripetal force tester |
| 05/04/1994 | CN2164084Y Ciroumference angle teaching built-up disk |
| 05/04/1994 | CN2164083Y Multifunction triangle and quadrilateral demonstrating model |
| 05/03/1994 | US5308277 Female playing doll, capable of imitating pregnancy and child birth |
| 04/27/1994 | CN2163416Y Omnidirectional controllable experimental burning apparatus |
| 04/27/1994 | CN2163415Y Teaching plate for solid geometry |
| 04/26/1994 | US5307296 Semiconductor workpiece topography prediction method |
| 04/21/1994 | DE4316992A1 Load measuring appts. for measuring load on legs of vehicle crash test dummy - contains force measurement sensors mounted in measurement plates on heel and sole of measurement shoe |
| 04/21/1994 | DE4241841C1 Tensioning device for at least two aligned units - has holder with extension fitted parallel to holder by rails, extension having permanent magnets inserted in it |
| 04/20/1994 | EP0593228A1 Sound environment simulator and a method of analyzing a sound space |
| 04/20/1994 | EP0592596A1 Cover slip holder for bilateral and unilateral simulation of thrombogenesis in partly occluded blood vessels, and a mixing device. |
| 04/20/1994 | CN2162687Y Demonstration model for protein molecule structure of haemoglobin |
| 04/20/1994 | CN2162686Y Electric gyroscope with three-freedom |
| 04/19/1994 | US5304065 Instrument simulator system |
| 04/19/1994 | US5303501 Training aid for pest control |
| 04/13/1994 | EP0591169A1 Cpr prompting apparatus |
| 04/13/1994 | CN2161962Y Hodoscope for projectile motion |
| 04/13/1994 | CN2161961Y Combined magnetic arithmetic demonstrator |
| 04/13/1994 | CN2161960Y Three ball projecting apparatus |
| 04/06/1994 | EP0590200A1 Device and method for the visualisation of cardiovascular risk factors |
| 04/06/1994 | CN2160966Y Electromagnet pilot unit |
| 04/06/1994 | CN2160965Y Single-layer direct-reading type electrostatic field plotter |
| 04/06/1994 | CN2160964Y Detachable multipurpose teaching aid box for solid geometry |
| 04/05/1994 | US5299938 Display apparatus |
| 04/05/1994 | US5299806 Educational device |
| 03/31/1994 | WO1994007227A1 Portable water pollution model and method |
| 03/31/1994 | DE4211423A1 Walking mechanism stabilisation using gyroscope principle - using electric motor as energy source for maintaining gyroscope rotation |
| 03/30/1994 | CN2160139Y Gas generator for exterior liquid |
| 03/29/1994 | US5299058 Method of reproducing mirage-like phenomenon |
| 03/23/1994 | CN2159601Y Internal resistance regulating battery for student |
| 03/23/1994 | CN2159600Y Plane geometry showing instrument |
| 03/22/1994 | US5296379 Apparatus and method for modeling arterial thrombus formations |
| 03/22/1994 | US5295835 Training manikin for cardio-pulmonary resuscitation having nested infant-size manikin |
| 03/17/1994 | WO1994006109A1 Medical training apparatus |
| 03/10/1994 | DE4306630A1 Medical training appts. for hysteroscopy - comprises housing with lower part and upper part with hollow spaces for uterus and Fallopian tubes |
| 03/09/1994 | EP0501982B1 Cpr manikin |
| 03/03/1994 | WO1994005000A1 Training manikin for cardio-pulmonary resuscitation |
| 03/03/1994 | DE4228798A1 Fault location mechanism test circuit e.g for asynchronous AC machine - provides winding taps on coils coupled to terminals of simulator, and connects several taps with each other to simulate fault-free or fault-contg. machine |
| 03/02/1994 | CN2158121Y Multi-function combined testing jig |
| 03/02/1994 | CN2158120Y Rotary light source type optical experimental instrument |
| 03/02/1994 | CN2158091Y Optical demonstrating box |
| 02/23/1994 | CN2157562Y Simple harmonic vibration and wave image demonstrator |
| 02/23/1994 | CN2157561Y Portable descriptive geometry and engineering drafting teaching model |
| 02/16/1994 | CN2156554Y Molecular track model |
| 02/16/1994 | CN2156553Y 托里拆利实验器 Torricelli experimental device |
| 02/16/1994 | CN2156051Y Geometry composite board |
| 02/15/1994 | US5286206 CPR manikin and disposable lung bag |
| 02/09/1994 | CN2155605Y Geometric figure learning apparatus |
| 02/08/1994 | US5284423 Computer controlled positive displacement pump for physiological flow simulation |
| 02/03/1994 | WO1994002924A1 Geographic locator system |
| 02/02/1994 | CN2155052Y Intelligence acupoint teaching instrument |
| 02/02/1994 | CN2155051Y A.b.o blood type demonstrating model |
| 02/02/1994 | CN2154733Y Combined toy for optical teaching |
| 01/26/1994 | EP0579800A1 Training device for simulating and practising dental procedures |
| 01/26/1994 | CN2154519Y Detector for electrochemistry micro-current |
| 01/26/1994 | CN2154518Y Magnet display watt-hour meter |
| 01/26/1994 | CN2154517Y Experimental device for physical electricity of junior middle school |
| 01/26/1994 | CN2154516Y Demonstrater of newtonian no.1 law |
| 01/26/1994 | CN2154515Y Geometric figure puzzle profitable for studying and teaching |
| 01/26/1994 | CN2154514Y Eight diagrams photoelectric display instrument |
| 01/25/1994 | US5282014 Laser rangefinder testing system incorporationg range simulation |
| 01/25/1994 | US5281145 Pictorial image transforming manipulatives |
| 01/20/1994 | WO1994001849A1 Psychometric testing |
| 01/20/1994 | DE4326461A1 Electronic focussing device for electrophoretic tomography studies of liquids - comprising electrolyte strips moistened with liquid under examination |
| 01/20/1994 | CA2140143A1 Psychometric testing |
| 01/19/1994 | CN2153844Y Portable rock ore palaeontology specimen demonstrating box |
| 01/19/1994 | CN2153843Y Changeable quality experimental device on gas track |
| 01/12/1994 | CN2153112Y Imitation training apparatus for medical teaching |
| 01/12/1994 | CN2153111Y Winding connection type tester for ic and computer circuit |
| 01/12/1994 | CN2153110Y Tester for increasing mass on aircushion rail |
| 01/12/1994 | CN2153109Y Newton's tube |
| 01/12/1994 | CN2153108Y Studying appliance for training space imaginative power |
| 01/11/1994 | US5277585 Waterflow teaching terrain model having ice storage chamber |
| 01/05/1994 | CN2152261Y Three purpose straightedge |
| 01/05/1994 | CN2152260Y Consealed bead teaching abacus |
| 01/04/1994 | US5275572 Training electrode foil used in defibrillator/monitor instruction and method of instruction |
| 01/04/1994 | US5275568 Geographic locator system |
| 12/29/1993 | CN2151514Y Human body instrument |
| 12/29/1993 | CN1080076A Mathematics teaching aid for students in middle school |
| 12/29/1993 | CN1023351C Hand model of holographic-embryo acupoint regions |
| 12/28/1993 | US5273436 Changeable grid system kit |
| 12/28/1993 | US5273435 Tumor localization phantom |
| 12/28/1993 | US5273038 Computer simulation of live organ |
| 12/22/1993 | CN2150599Y Combined instrument for student learning optics and heat in middle school |
| 12/22/1993 | CN2150598Y Set square calculator |
| 12/22/1993 | CN1079606A Packaging method for making human-body specimen |
| 12/15/1993 | CN2149669Y Monolithic device ac bridge balance indicator |
| 12/15/1993 | CN2149668Y Electronic imitating demonstration device |
| 12/08/1993 | CN2148996Y Electrothermal double-bathing dissolver |
| 12/08/1993 | CN2148995Y Gaseous phase-chromatographic demonstrating equipment with heat conduction detector |
| 12/02/1993 | DE4227651C1 Human-dummy shinbone for simulating accident effect - has roller on sliding impact tappet working against cam of varying radius on foot |