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Class Information
Number: 159/10
Name: Concentrating evaporators > Film type > Moving-film support > Gaseous current > Rotary drum or disk > Exterior surface
Description: Apparatus in which the rotary drum or disk supports the film on its exterior surface.

Patents under this class:

Patent Number Title Of Patent Date Issued
4249989 Isolating solid substances from a vapor and gas mixture and pulps Feb. 10, 1981
4114753 Sludge film conveying device Sep. 19, 1978

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