NASA NTRS · 19650000069
Simple scale interpolator facilitates reading of graphs
Abstract
Simple transparent overlay with interpolation scale facilitates accurate, rapid reading of graph coordinate points. This device can be used for enlarging drawings and locating points on perspective drawings.
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Fetterman, D. E., Jr.. 1965-03-01. Simple scale interpolator facilitates reading of graphs. https://ntrs.nasa.gov/citations/19650000069
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