73454500
Nov 28, 1983
Jun 18, 1985
MITSUBISHI RAYON KABUSHIKI KAISHA (MITSUBISHI RAYON CO. LTD.)
Microporous Hollow Fibre Membranes for Filtering or Purifying Liquids (Water, Body Fluids Such as Blood, Organic Liquids, etc.) or Gases (Air, Oxygen, etc.)
Environmental Control Apparatus