Abstract
In this report a description is given of the existing alarm-system. It is necessary to extend the communication system along with few telephones and relativity high traffic volume. Also the system must have more uniformity.
In this report a description is given of the existing alarm-system. It is necessary to extend the communication system along with few telephones and relativity high traffic volume. Also the system must have more uniformity.
's-Gravenhage, Ministerie van Verkeer en Waterstaat, 1967, 23 p.
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