Improvement of visual aids for air navigation : progress report March 1, 1954 to June 30, 1954 / F.C. Breckenridge.
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Main Author: | |
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Format: | Government Document eBook |
Language: | English |
Published: |
Gaithersburg, MD :
U.S. Dept. of Commerce, National Institute of Standards and Technology,
1954.
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Series: | NBS report ;
3647. |
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Internet
Online AccessOnline
Call Number: |
C 13.38:3647
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C 13.38:3647 | Available |