Study of optical system for airport traffic signal projector /

Bibliographic Details
Main Author: Crouch, E. W.
Corporate Author: United States. National Bureau of Standards
Format: Government Document Book
Language:English
Published: Gaithersburg, MD : U.S. Dept. of Commerce, National Institute of Standards and Technology, 1954.
Series:NBS report ; 3087.
Subjects:
Online Access:https://purl.fdlp.gov/GPO/gpo100639

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