74284220
Jun 11, 1992
Aug 9, 1994
air and liquid filters for engines, air compressors and blowers, air conveyance systems, air ventilation systems, air operated equipment, compressed gas systems, and other industrial uses, such as paint spray systems, air component production, air gauge systems, food processing, air conveyors, instrument sample preparation, and process controllers, and filtering media used in such filters
Machinery