Directed by
Jack Cummings |
Cast (in credits order)
Pete Smith | ... | Narrator | |
Louis Zingone | ... | Louis Zingone | |
Muriel Evans | ... | Demonstration Watcher | |
Irene Hervey | ... | Demonstration Watcher | |
Harrison Greene | ... | Demonstration Watcher |
Jack Cummings |
Pete Smith | ... | Narrator | |
Louis Zingone | ... | Louis Zingone | |
Muriel Evans | ... | Demonstration Watcher | |
Irene Hervey | ... | Demonstration Watcher | |
Harrison Greene | ... | Demonstration Watcher |
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