== Example of Katedra/Zakład Fototechniki's cooperation with the industry in the 1960s ==
The letter of February 1967 from the FODU - Filmowy Osrodek Doświadczalno-Usługowy [Test and Service Film Center] in Warszawa (Warsaw, Poland) informs of the purchaser's approval to the Katedra Fototechniki's method of emulsion coating.