1970
0.0
0
January 1, 1970
11m
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.
Original Title
How Levers Help Us
Spoken Languages
Production Countries
United States of America
Budget
N/A
Revenue
N/A
Production Companies
Director
Writer
Producer
Composer
Screenplay
Production Companies
Coronet Films
Director
N/A
Writer
N/A
Producer
N/A
Composer
N/A
Screenplay
N/A
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