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.
Official Trailer
Budget
Not disclosed
Revenue
Not disclosed
Studio
1 review
Title
How Levers Help Us
Released
Jan 1, 1970
Rated
NR
Region of Origin
United States of America
Original Audio
English
Runtime
11m
Status
Released
Studio
Coronet Films
