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GRAHAM-FIELD GRAFCO ISHIHARA TEST CHART BOOKS, FOR COLOR DEFICIENCY
Item#:
GRF 1254
Unit of Measure:
EA
Ishihara Test Chart Book For Color Deficiency, 14 Plate Book
Accepted by leading authorities as a simple and accurate method for discovering congenital color blindness and red-green blindness, each in two forms, complete and incomplete. Includes four special plates for tests to determine the kind and degree of def
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