Demonstration of nitrate device. (1990 - 1999)

Film-document №23221 1 footage, Duration: 0:11:48.987 to collection Price category R
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Scene 1 0:11:49

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Scene №1 Demonstration of nitrate device

One of the developers at the table.

Describes the device unit.

Demonstrates the device in action: measures the level of nitrate in cucumber and potato.



Social life