| Waves In A String |
1949 |
Loew's International Corp |
10 min |
16mm |
|
sound |
| Tyndall's Apparatus |
1949 |
Loew's International Corp |
10 min |
16mm |
|
sound |
| The Electroscope |
1949 |
Metro-Goldwyn-Mayer. |
10 min |
16mm |
|
sound |
| Electrolysis |
1949 |
Loew's International Corp |
4 min |
16mm |
|
sound |