Specification of railroad signal colors and glasses

• Publisher: Elsevier Science
• Year: 1946
• Tongue: English
• Weight: 70 KB
• Volume: 241
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(46)90279-7

✦ Synopsis

I39

principles of building construction laid down for the guidance of Federal Housing Agencies. The results will be made available to the public in the near future.

SPECIFICATION OF RAILROAD SIGNAL COLORS AND GLASSES.