73071579
Dec 11, 1975
May 30, 1978
PNEUMATICALLY DRIVEN CONTROLS AND REGULATING INSTRUMENTS IN FILTRATION PROCESSES IN THE BIOCHEMICAL, PHYSICAL, CHEMICAL AND NUCLEAR POWER INDUSTRIES WHICH INVOLVE SEMI-AUTOMATIC CONTROLS, PILOT VALVES, FULLY AUTOMATIC CONTROLS, FERMENTATION APPARATUS AND APPARATUS OF COMPUTERIZATION IN THE FIELD OF FERMENTATION TECHNOLOGY
Electrical and Scientific ApparatusINDUSTRIAL FILTERING UNITS FOR SLURRY OR DRY RESIDUE DISCHARGE AND FOR WASTE TREATMENT
Environmental Control Apparatus