An Improved Precision Height Gage Open PDF Document Details Document Type Technical Report Publication Date Nov 01, 1963 Accession Number ADA279947 Entities People Lester B. Vale Organizations National Aeronautics and Space Administration Tags Communities of Interest Air Platforms DTIC Thesaurus Topics Accuracy Aeronautics Attachment Cutting Tools Machines Materials Measurement Measuring Instruments Micrometers Precision Thickness Tools United States United States Government