74179245
Jun 24, 1991
Nov 3, 1992
laboratory cartridge filters composed primarily of polyethersulfone used in pharmaceutical and biotechnical applications to concentrate or purify liquids, such as concentration or diafiltration of proteins; fractionation of blood proteins; purification of albumin, hormones, antibiotics, and vaccines; cell harvesting; cell washing; cell product purification; depyrogenation of pharmaceutical products; and depyrogenation of water for various laboratory procedures
Electrical and Scientific Apparatus