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  2. Federal Signal Corporation | Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Corporation

    Federal Signal Corporation is an American manufacturer headquartered in Downers Grove, Illinois. Federal Signal manufactures street sweeper vehicles, public address systems, emergency vehicle equipment, and emergency vehicle lighting.

  3. Thunderbolt (siren) | Wikipedia

    en.wikipedia.org/wiki/Thunderbolt_(siren)

    The Thunderbolt is a discontinued mechanical outdoor warning siren made by Federal Signal Corporation. [1] It is a unidirectional siren with a large yellow (or other color based on buyer's choice) horn.

  4. Federal Signal Company | Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Company

    The Federal Signal Company was an American manufacturer of railway signaling equipment in the early 20th century. It was located in Albany, New York . The company had been founded in 1905 as the Federal Railway Signal Company by former employees of the Standard Signal Company (Arlington, New Jersey). [1] It established a manufacturing works at ...

  5. Federal Signal 3T22 | Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_3T22

    Federal Signal 3T22. A Federal Signal 2T22 siren. The Federal Signal 3T22 / 2T22 was a dual tone, mechanical outdoor warning siren made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. It has a very recognizable design, having a ten-port rotor (chopper) on the bottom with ten cones ...

  6. Federal Signal Model 2 | Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Model_2

    The Federal Signal Model 2 is an omnidirectional outdoor warning siren produced by Federal Signal Corporation.

  7. Federal Signal Modulator | Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Modulator

    Federal Signal Modulators (also known as Modulator Speaker Arrays) are electronic warning devices produced by Federal Signal Corporation that are used to alert the public about tornadoes, severe weather, earthquakes, fires, lahars, tsunamis, or any other disaster.

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