The Federal Signal Model 2 is an omnidirectional outdoor warning siren produced by Federal Signal Corporation. The Model 2 features a 2 HP universal motor...

sold, such as the Federal Signal Model 2. In 1976, the company became Federal Signal Corporation. On Feb 22, 2000, Federal Signal Corporation announced...

General Model 2, laptop by Data General Experimental Model 2 submachine gun, a Japanese submachine gun in service from 1935 to 1945 Federal Signal Model 2, an...

ATI HPSS Thunderbolt (siren) Federal Signal 3T22 / 2T22 Federal Signal Model 2 Federal Signal Modulator Federal Signal STH-10 Chrysler Air-Raid 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)...

Federal Signal Modulators (also known as Modulator Speaker Arrays) are electronic warning devices produced by Federal Signal Corporation that are used...

Thunderbolt was a mechanical outdoor warning siren manufactured by Federal Signal Corporation from 1951 until its production ended in 1991. It is a unidirectional...

common presence of Federal Signal, Whelen and Hörmann, Sonnenburg, despite very rare cases of some Elektror or Siemens-Schuckert models remaining. They sound-off...

modulated carrier signal. An FM radio receiver's tuner spans a limited range of frequencies. A government agency (such as the Federal Communications Commission...

into its original 1905 configuration. The original Wright Military Model A plane (Signal Corps No. 1) is now on display at the National Air and Space Museum...