TRAINING DEVICE FOR GEOMETRY LEARNING Russian patent published in 1994 - IPC

Abstract RU 2010344 C1

FIELD: teaching aids manufacturing. SUBSTANCE: device has panel for imitating curved line subject of inquiring fixing by pawls and two symmetric attachments for curvature ring center position determining. Each attachment has two bars, three cross-wise sliders, three pairs of two-bearing sliders, two pointers, indicating bar and four links. EFFECT: more effective training processing for flat curve treatment. 1 tb, 1 dwg

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RU 2 010 344 C1

Authors

Utishev E.G.

Dates

1994-03-30Published

1991-10-28Filed