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A. Genin as Nahum Beychik, inventor |
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Василий Бокарев as Surkov, master |
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Kuzma Yastrebetsky as Lopatin |
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Aleksandr Duletov as Kuzma, Surkov's son |
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Николай Акимов as Factory secretary |
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Ye. Bondina as Lopatina |
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Т. Соколовская as Nadya |
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F. Tarasov as Worker |
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S. Stepanov as Worker |
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V. Snezhinskaya as (uncredited) |
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Viktor Arkasov as Worker (uncredited) |
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Иван Мутанов as Worker (uncredited) |
| Writing | Иван Мутанов | Writer |
| Writing | Наум Лойтер | Writer |
| Writing | Александр Крон | Writer |
| Directing | Иван Мутанов | Director |
| Camera | Борис Монастырский | Director of Photography |
| Writing | L. Zadvorochnov | Writer |
| Writing | Леонид Варламов | Writer |
| Directing | Леонид Варламов | Assistant Director |
| Art | Валентина Хмелёва | Production Design |
| Production | V. Golovkin | Administration |
| Camera | Aleksandr Grinberg | Still Photographer |
| Camera | B. Eyberg | Assistant Camera |
