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A-A-53019 1987 Edition, June 19, 1987
Complete Document
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Includes all amendments and changes through Cancellation Notice 1, September 11, 2012
Additional Comments: CNCL NO S/S
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The General Services Administration has authorized the use of this commercial item description.

This commercial item description covers a Berens prism set used to measure muscular imbalance of the eye or cross eye and generally used at reading distances.