Pneumatic: Revision history

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19 August 2024

27 April 2019

  • curprev 23:2023:20, 27 April 2019Duderocks5539 talk contribs 429 bytes +429 Created page with "A Pneumatic siren is a siren that is similar to an electromechanical siren ,except it has a rotor that has no vanes ,requiring an external air source to feed air to the choppe..."