| 31. | Canned air horns were sold by the case.
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| 32. | They blasted air horns and chanted " Edouard!
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| 33. | Locomotives have train horns, which are air horns operated by compressed air from the train's chord.
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| 34. | They filled the sold-out arena with songs, chants, air horns and, yes, even with the wave.
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| 35. | Wearing red headbands over yellow baseball caps, the workers blared air horns and sang union songs.
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| 36. | However, Paul unexpectedly found and sounded the air horn and won the money for the group.
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| 37. | Swanson sought to develop an air horn which would mimic the sound of a classic steam whistle.
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| 38. | Some states also allow volunteer use of sirens and air horns to request the right of way.
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| 39. | Two stayed on long enough to hear the air horn at eight seconds, indicating a legal ride.
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| 40. | Air horns are a growing problem, and not just because they sound like an incoming subway train.
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