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Patent Protection Ended

No. Patent No. Title
8941. PI 91001573 ANODE FOR CHROMIUM PLATING AND PROCESSES FOR PRODUCING AND USING THE SAME.
8942. PI 91001574 HIGH EFFICIENCY LIQUID/LIQUID HYDROCYLONE.
8943. PI 91001575 MAGNETIC RECORDING METHOD AND CIRCUIT FOR TOLL ROAD TICKET.
8944. PI 91001576 GAS PHASE POLYMERISATION PROCESS.
8945. PI 91001578 IMPROVED PROCESS FOR SEPARATING ILMENITE.
8946. PI 91001581 CIRCUIT FOR RECORDING AND REPRODUCING TIME BASE ERROR CORRECTOR REFERENCE SIGNAL.
8947. PI 91001582 PUSH SWITCH
8948. PI 91001583 ACIDIC LIQUID DETERGENT COMPOSITIONS FOR BATHROOMS.
8949. PI 91001585 A COMBUSTION MOTOR IS DESCRIBED, IN WHICH
8950. PI 91001586 PROCESS AND APPARATUS FOR FABRICATING HONEYCOMB MATERIAL.
8951. PI 91001587 EMERGENCY DESCENT DEVICE.
8952. PI 91001591 PROCESS FOR THE AROMATIZATION OF HYDROCARBONS CONTAINING 2 TO 4 CARBON ATOMS PER MOLECULE IN THE PRESENCE OF A PARTICULAR CATALYST.
8953. PI 91001592 CHECK VALVE FOR SCROLL COMPRESSOR.
8954. PI 91001593 AXIALLY COMPLIANT SCROLL WITH ROTATING PRESSURE CHAMBERS
8955. PI 91001594 IMPROVED SPRAY NOZZLE DESIGN.
8956. PI 91001596 TUBULAR STUFFING APPARATUS.
8957. PI 91001597 SYSTEM OF MACHINING DEVICES.
8958. PI 91001598 FLAME-RETARDANT RESIN COMPOSITION AND INSULATED ELECTRICAL WIRE EMPLOYING THE SAME.
8959. PI 91001599 A PRESSURE AND ROTARY TYPE WASHING MACHINE AND A WASHING METHOD BY USING SUCH.
8960. PI 91001600 WASHING MACHINE WITH ROLLER TYPE AGITATOR.