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Patent Protection Ended

No. Patent No. Title
1941. PI 87001514 IMPROVED METHOD FOR DETERMINING MIMOTOPES.
1942. PI 87001515 METHOD FOR DETERMINING MIMOTOPES.
1943. PI 87001517 IMPROVEMENTS IN THE MANUFACTURE OF ELECTRODES.
1944. PI 87001518 COATED METAL ELECTRODES FOR ELECTROLYSIS AND PROCESS FOR PRODUCTION THEREOF
1945. PI 87001519 COATED METAL ELECTRODES FOR ELECTROLYSIS AND PROCESS FOR PRODUCTION THEREOF
1946. PI 87001520 EARTHING SYSTEM FOR AN APPARATUS CABINET
1947. PI 87001521 CABINET OF A PARTICULARLY LIGHT AND STIFF CONSTRUCTION.
1948. PI 87001522 DEVICE FOR SEALING BETWEEN TWO METAL PLATES USED AS ELECTROMAGNETIC FIELD SCREENS.
1949. PI 87001523 PROCESS FOR ELECTROLYTIC TREATMENT OF A METAL BY LIQUID POWER FEEDING.
1950. PI 87001525 SEALING DEVICE IN METAL CABINETS, WHICH SCREEN OFF ELECTROMAGNETIC FIELDS
1951. PI 87001526 ARRANGEMENT FOR ESTABLISHING WWIDE BAND CONNECTION IN A SWITCHING NETWORK.
1952. PI 87001528 SULPHONATION OF FATTY ACID ESTERS.
1953. PI 87001529 DETERGENT POWDER AND PROCESS FOR ITS PREPARATION.
1954. PI 87001530 BLEACHING DETERGENT MATERIALS.
1955. PI 87001531 DETERGENT GRANULES
1956. PI 87001532 PROCESS FOR PRODUCING ALCOHOLS FROM SYNTHESIS GAS.
1957. PI 87001533 RESIN COMPOSITION AND A PROCESS FOR PREPARING LAMINATES THEREFROM.
1958. PI 87001534 CURABLE COMPOSITIONS CONTAINING A POLYEPOXIDE AND A HALOGENATED DIHYRDRIC PHENOL AND IMPREGNATED SUBSTRATES AND LAMINATES PREPARED THEREFROM
1959. PI 87001535 STRAP FASTENERS
1960. PI 87001536 CHANNELED NAPKIN WITH DRY COVER