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Manufacture of black tea by "enclosed leafhandling" : ("leafthermac" - "drum storage - single unit" manufacture) / Stichting voor verbeterde theebereiding (S.V.V.T.) = Foundation for improved manufacture of tea.
- S.V.V.T.,
- 1950.
- The Hague :
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Insight in and schemes for improved manufacture of tea / Stichting voor verbeterde theebereiding.
- S.V.V.T.,
- 1948.
- The Hague :