Released
Proud 640
December 31 1950 (almost 74 years ago)Rating
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- Director: Oldřich Mirad
- Writer: Oldřich Mirad
- Genre: Documentary
- Country: Czechoslovakia
- Company: Studio populárně vědeckých a naučných filmů Gottwaldov
A picture of the new step-by-step process of building construction called "flow 640", which ensures optimal continuity of the individual professional parts of building construction.