WO9635003-A1 -- AT389020-B   ;  GB2073251-A   GENERAL ELECTRIC CO (GENE);  ORONZIO DE NORA IMPIANTI ELETR (ORON)   BALKO E N;  US4247376-A   GENERAL ELECTRIC CO (GENE);  ORONZIO DE NORA IMPIANTI ELETR (ORON);  US5399184-A   CHLORINE ENGINEERS CORP LTD (CHLR)   HARADA H;  US5863395-A -- AU389020-A   ;  CA1179631-A   GENERAL ELECTRIC CO (GENE)   BALKO E N;  CA1195949-A   GENERAL ELECTRIC CO (GENE);  ORONZIO DE NORA IMPIANTI ELETR (ORON)   BALKO E N;  DE2321297-A   ;  EP319489-A   PERMELEC ELECTRODE LTD (PERE)   NISHIKI Y,  NAKAMATSU S,  SHIMAMUNE T;  GB363424-A   ;  GB861978-A   ;  GB2073251-A   GENERAL ELECTRIC CO (GENE);  ORONZIO DE NORA IMPIANTI ELETR (ORON)   BALKO E N;  JP56036873-A   ;  US3453187-A   ;  US3729395-A   ;  US4139447-A   UGINE KUHLMANN (UGIN);  US4169025-A   DU PONT DE NEMOURS & CO E I (DUPO)   NEEDES C R S;  US4191618-A   GENERAL ELECTRIC CO (GENE)   COKER T G,  DEMPSEY R M,  LACONTI A B;  US4210501-A   GENERAL ELECTRIC CO (GENE);  US4214969-A   GENERAL ELECTRIC CO (GENE);  UNITED TECHNOLOGIES CORP (UNAC)   LAWRANCE R J;  US4224121-A   GENERAL ELECTRIC CO (GENE);  ORONZIO DE NORA IMPIANTI ELETR (ORON);  DE NORA PERMELEC SP (DNOR-Non-standard);  US4247376-A   GENERAL ELECTRIC CO (GENE);  ORONZIO DE NORA IMPIANTI ELETR (ORON);  US4294671-A   GENERAL ELECTRIC CO (GENE)   BALKO E N;  US4311568-A   GENERAL ELECTRIC CO (GENE);  ORONZIO DE NORA IMPIANTI ELETR (ORON)   BALKO E N;  US4343690-A   ORONZIO DE NORA IMPIANTI ELETR (ORON);  US4457822-A   PERMELEC ELECTRODE LTD (PERE)   HIROSHI A,  TAKAYUKI S,  TOSHIKI G;  US4595579-A   ;  US4655887-A   ;  US4666574-A   ASAHI GLASS CO LTD (ASAG)   ODA Y,  MORIMOTO T,  SUZUKI K;  US4909912-A   ASAHI GLASS CO LTD (ASAG)   ODA Y,  MORIMOTO T,  SUZUKI K;  US4959132-A   NORTH CARO STATE UN (UYNC-Non-standard)   FEDIKW P S;  US5223102-A   DU PONT DE NEMOURS & CO E I (DUPO)   FEDKIW P S,  LIU R,  TRAINHAM J A;  US5399184-A   CHLORINE ENGINEERS CORP LTD (CHLR)   HARADA H;  US5460705-A   LYNNTECH INC (LYNN-Non-standard)   MURPHY O J,  HITCHENS G D;  US5460896-A   EQUOS RES KK (EQUS)   TAKADA C