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Photographic and drafting techniques simplify method of producing engineering drawingsCombination of photographic and drafting techniques has been developed to simplify the preparation of three dimensional and dimetric engineering drawings. Conventional photographs can be converted to line drawings by making copy negatives on high contrast film.
Document ID
19680000128
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Provisor, H.
Date Acquired
August 4, 2013
Publication Date
April 1, 1968
Subject Category
Physical Sciences
Report/Patent Number
MSC-716
Report Number: MSC-716
Accession Number
68B10128
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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