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.
| Tagline | |
| Release Date: | Jan 01, 1970 |
| Genres: | Documentary |
| Production Company: | Coronet Films |
| Production Countries: | United States of America |
| Casts: | |
| Status: | Released |
| Budget: | $0 |
| Revenue: | 0 |
KODE IKLAN BANNER ATAU IKLAN HORIZONTAL DISINI
