Open AccessElectric direction signal systems other than semaphore type for commercial and other vehicles subject to special motor-vehicle laws (after market)
Publication year - 1941
Language(s) - English
Resource type - Reports
DOI - 10.6028/nbs.cs.80-41
Subject(s) - semaphore , subject (documents) , signal (programming language) , law , computer science , engineering , automotive engineering , political science , library science , programming language , operating system
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