Jaan 780 Sofa. is made by Brand Walter Knoll. Details and photos of Jaan 780 Sofa. are displayed above. You can also check other products in Furnishings category. Brand Walter Knoll / Furnishings Furnishings products by Brand Walter Knoll Modern Icons: Fabricius Sofa. Jaan 780 Armchair. CEOO Conference Table. Foster 502 Armchair. Modern Icons: Foster 502 Armchair. Joco Stone Side Table.