Description: Factory Machine; Machine Switches On, Low Hum Slow Rise In Tone, Whirling, Various Tones. Switch Off With High Tone Constant Running, Small Knocks, Scrapes In Background. Loud, Abrupt Turn Off. Close-up.

Description: Factory Machine; Machine Hum And Buzz, High And Low Frequency Together. Close-up.

Description: Hand-operated Machine; Metal Rolling / Clanks With Creaks And Squeaks. Medium.

Description: Hand-operated Machine; Squeaks And Metallic Rolling, Repetitive, Back And Forth With High-pitched Squeaks. Steady, Fast, Slow And Stops. Close-up.

Description: Crane Motor Movements, Labored Starts Stops, Cu Perspective, W Grinding Noise.

Description: Crane Motor Movements, Lifting Object, Cu Perspective, W Clanks And Machine Whir.

Description: Crane Motor Movement, Cu Perspective, W Strained Engine Noise.

Description: Small Electric Motor 5 In Rhythmic Operation.

Description: Small Electric Motor 3 In Rhythmic Operation.

Description: Escalator Motor Operating, Cu Perspective, W Rhythmic Clanks And Squeaks.

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