74129917
Jan 14, 1991
membrane modules for gas enrichers such as devices to partially separate the components of air used in general industrial, business or construction
Machinerypermeable membranes for medical use; namely, blood-gas analysis and gas sensor detection and membrane modules for patient oxygen enrichers
Medical Apparatuspermeable membranes for use in the manufacture of chemicals, food processing and food testing and in industrial diagnostics
Environmental Control Apparatus