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Start Over Subjects Optical Devices ✖Remove constraint Subjects: Optical Devices Authors Armored Medical Research Laboratory (U.S.), author. ✖Remove constraint Authors: Armored Medical Research Laboratory (U.S.), author. Titles Second partial report on sub-project no. 6-2, study of characteristics and limitations of present visual devices in tanks: sub-project no. 6-4, study of means of improving sighting telescopes ✖Remove constraint Titles: Second partial report on sub-project no. 6-2, study of characteristics and limitations of present visual devices in tanks: sub-project no. 6-4, study of means of improving sighting telescopes

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  • Armored Medical Research Laboratory (U.S.), author.1

  • Second partial report on sub-project no. 6-2, study of characteristics and limitations of present visual devices in tanks: sub-project no. 6-4, study of means of improving sighting telescopes1