Description
and cochlear detail for auditory teaching
driving performance with motor-generator #2
sized for beginner circuit and physics labs
Relay-based NAND-gate module on a demonstration base
Opisometer Geology and cochlear detail for auditoryOpisometer with a knurled wheel on a threaded spindle, rolling along curved lines on maps, charts, and drawings to convert winding distance into straight line length for geography coursework.
Exchange/Return Notes
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- Final sale items are not eligible for returns or exchanges.
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