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How Levers Help Us

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Producing House

This instructional film shows the three parts of a lever and demonstrates how various levers help to move things more easily, or move them farther and faster.

movie

Status: Released

Released Date: 1970-01-01

Runtime: 11 mins

Director:

Spoken language:

Genres: Documentary

Original title: How Levers Help Us

Production Companies: Coronet Films

Production Countries: United States of America

Cast

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