Patents for G09B 25 - Models for purposes not provided for in group , e.g. full-sized devices for demonstration purposes (6,311)
10/1976
10/19/1976US3986278 Educational device for learning transmission drive shaft, and axle operation
10/19/1976US3986277 Educational device for learning disc brake fundamentals
10/19/1976US3986276 Educational device for learning suspension system fundamentals
09/1976
09/28/1976US3982330 Method and apparatus for simulating in a model the disbursement of gas and dust in a mine
08/1976
08/24/1976US3975835 Computer applications trainer
08/10/1976US3973335 Apparatus to demonstrate air flow through permeable sheet material
06/1976
06/08/1976US3961426 Portable stage assembly
05/1976
05/11/1976US3955788 Apparatus for positioning and supporting optical laboratory instruments
04/1976
04/13/1976USRE28763 Computer teaching machine
03/1976
03/23/1976US3945132 Display system
01/1976
01/27/1976US3934356 Teaching aid for air conditioning apparatus
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