Description of Manufacture - Optical Elements for Five Control Instruments Open PDF Document Details Document Type Technical Report Publication Date Apr 01, 1951 Accession Number ADA800011 Tags Communities of Interest Advanced Electronics Air Platforms Ground and Sea Platforms Weapons Technologies DTIC Thesaurus Topics Chemical Synthesis Chemistry Grinding Wheels Light Sources Material Degradation Processes Materials Laboratories Materials Processing Materials Science Measurement Medical Personnel Optical Properties Optics Refractive Index Surface Properties