73202953
Feb 7, 1979
Dec 15, 1981
Active Trademark
Prefilters Having a Pore Size Greater than About 0.8 Micron, in Particular Filter Cartridges and Membrane Prefilters for a Single Use as Parts of Filter Systems or as Independent Prefilters (Above Described Goods Not Machine Parts) for Cleaning of Liquids and Gases in the Electronic-, Pharmaceutical-, Food-, Delicacies-, Cosmetic-, and General Chemical Industries
Chemicals