Ludlum Model 44-38 Beta-Gamma Detector Manual. · LUDLUM MODEL 44-38 BETA-GAMMA DETECTOR June 2011...
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Ludlum Model 44-38 Beta-Gamma Detector Manual. · LUDLUM MODEL 44-38 BETA-GAMMA DETECTOR June 2011 Serial Number PR107884 and Succeeding Serial Numbers LUDLUM MEASUREMENTS, INC. 501