Samenvatting
In "electric bulbs for traffic signals" the author gives results of outturn of normal electric bulbs in traffic signals. The use of low voltage bulbs and special bulbs is discussed.
In "electric bulbs for traffic signals" the author gives results of outturn of normal electric bulbs in traffic signals. The use of low voltage bulbs and special bulbs is discussed.
Strassen Vekehrs Technik, Vol. 14 (1970), No. 3 (Mai-Juni), p. 74-4
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