A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Electric direction signal systems other than semaphore type for commercial and other vehicles subject to special motor-vehicle laws (after market)
Standard covers requirements and methods for construction, vibration and shock, dust, moisture, corrosion, reliability, and understandability tests of direction signals. (5¢)
Electric direction signal systems other than semaphore type for commercial and other vehicles subject to special motor-vehicle laws (after market)
Standard covers requirements and methods for construction, vibration and shock, dust, moisture, corrosion, reliability, and understandability tests of direction signals. (5¢)
Electric direction signal systems other than semaphore type for commercial and other vehicles subject to special motor-vehicle laws (after market)
U S Bur Standards -- Commercial Standard
1940
12 pages
Standard
English
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