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Concept for modifying drafting instruments to minimize smearingBall bearing standoffs added to drafting instruments enable the instruments to be moved about, with their surfaces out of contact with the drawing paper. This provides a safeguard against smearing of the lines.
Document ID
19670000283
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Rennie, T. A.
Date Acquired
August 3, 2013
Publication Date
August 1, 1967
Subject Category
Mechanics
Report/Patent Number
KSC-10056
Report Number: KSC-10056
Accession Number
67B10283
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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