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Setting of angles on machine tools speeded by magnetic protractorAn adjustable protractor facilitates transference of angles to remote machine tools. It has a magnetic base incorporating a beam which can be adjusted until its shadow coincides with an image on the screen of a projector.
Document ID
19630000003
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Vale, L. B.
Date Acquired
August 1, 2013
Publication Date
May 1, 1964
Subject Category
Electronic Components And Circuits
Report/Patent Number
ARC-5
Report Number: ARC-5
Accession Number
63B10006
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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