First installed in the 1950s, they were developed for Cold War air raid warnings, but in the 1970s, the sirens transitioned ...
MLive - GrandRapids/Muskegon/Kalamazoo on MSN3d
Tornado siren tripped on accident after water pipe bursts in dispatch centerThe center was still in operation while dealing with the burst pipe and water damage. Central Dispatch’s radio vender and IT ...
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