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Patent Protection Ended

No. Patent No. Title
5661. PI 89001704 DRILLING FLUIDS BASED ON ESTER OILS AND THE USE OF SELECTED ESTER OILS IN DRILLING FLUIDS, PARTICULARLY FOR THE OFFSHORE DEVELOPMENT OF OIL AND GAS SOURCES
5662. PI 89001705 IMPROVED FAN ASSEMBLY.
5663. PI 89001706 ARTICLE HOLDING APPARATUS
5664. PI 89001707 GATE PUMP FACILITY AND OPERATION METHOD THEREFOR
5665. PI 89001710 NOVEL HERBICIDE COMPOSITION.
5666. PI 89001711 DETERGENT COMPOSITION
5667. PI 89001712 ELECTROACOUSTIC TRANSDUCER APPARATUS.
5668. PI 89001716 INCREASING OPTIONS IN MAPPING ROM IN COMPUTER MEMORY SPACE
5669. PI 89001717 ADHESIVE FOR COPPER FOIL
5670. PI 89001718 PROCESS FOR TREATING SURFACE OF COPPER FOIL
5671. PI 89001719 LIQUID CRYSTAL DISPLAY PANEL.
5672. PI 89001722 FINE POLISHING COMPOUND FOR WAFER
5673. PI 89001723 HEAT-LABILE TOXIN B SUBUNIT FUSION PROTEINS.
5674. PI 89001724 COMPOUNDS.
5675. PI 89001726 FILM-FORMING RESIN AND HAIR DRESSING COMPOSITION CONTAINING THE SAME
5676. PI 89001729 LOADING DEVICE FOR A RECORDING AND/OR REPRODUCTION SET.
5677. PI 89001730 APPARATUS AND METHOD FOR PROCESSING PINEAPPLES
5678. PI 89001731 SEPARABLE ARTICLE CARRIER.
5679. PI 89001733 PELLECT ACCOMMODATING AND ALIGNING JIG.
5680. PI 89001734 LINE PRESSURE REGULATOR.