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How Levers Help Us
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How Levers Help Us
FEATURE FILM

How Levers Help Us

— 1970 11 min United States of America EN
Documentary

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.

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Released
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How Levers Help Us (1970) — 12K Movie | 12K Movie