|
DE739172C
|
|
Bottoms for distilling, rectifying and washing columns
|
|
DE732717C
|
|
Fixing of floors for distillation, rectification and washing columns
|
|
DE721252C
|
|
Bottoms for distilling, rectifying and washing columns
|
|
DE324280C
|
|
Process and device for separating oily substances from mixtures by means of continuously working distillation and amplification columns
|
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GB191122411A
|
|
Improvements in or relating to the Recovery of Alcohol in Fermenting Processes.
|
|
GB190924903A
|
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Improvements in Vessels for Mixing, Grinding, Bleaching and like Purposes.
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