Laboratory apparatus, namely, centrifuges for separating a composite liquid, namely, blood or buffy coat [ or bone marrow or umbilical cord blood, ] into one or more components, namely, plasma, platelets, white blood cells, red blood cells, blood fractions [ or stem cells ] ; Laboratory apparatus, namely, centrifuges for the separation of one or more components, namely, plasma, platelets, white blood cells, red blood cells [, ] or blood fractions [ or stem cells ], from a composite liquid, na...