73454503
Nov 28, 1983
Feb 5, 1985
Microporous Plastic Hollow Fibre Membranes for Filtering or Purifying Liquids (Water, Body Fluids Such as Blood, Organic Liquids etc.) or Gases(Air, Oxygen etc.), for Separating or Exchanging Components of the Said Liquids or Gases and for Absorbing Ingredients of the Said Liquids or Gases
Chemicals