;  GB2177387-A -- GB642744-A   ;  GB1069625-A   ;  GB1075226-A   ;  GB1092271-A   ;  GB1421672-A   ;  GB1522280-A   HOLLINGSWORTH & VOSE CO (HOVO);  GB2003124-A   ;  US3539446-A   ;  US4064207-A   UNITED TECHNOLOGIES CORP (UNAC)   DECRESCENTE M A,  LAYDEN G K,  PIKE R A;  US4360485-A   UNITED TECHNOLOGIES CORP (UNAC)   EMANUELSON R C,  LUOMA W L,  TAYLOR W A;  FR2584535-A -- DE2165029-A   KUREHA KAGAKU KOGYO KK (KURE);  DE2165029-B   KUREHA KAGAKU KOGYO KK (KURE);  EP162976-A   OJI PAPER CO (OJIP)   AWATA Y,  IWAKI O;  EP162976-B   OJI PAPER CO (OJIP)   AWATA Y,  IWAKI O;  FR1493696-A   LE CARBONE LORRAINE SA (CAOR);  FR2124638-A   WEST POINT PEPPERELL INC (WESR);  FR2143654-A   SIGRI ELEKTROGRAPHIT GMBH (SIGE);  FR2237003-A   KUREHA KAGAKU KOGYO KK (KURE);  TOYO BOSEKI KK (TOYM);  FR2369230-A   ;  GB1421672-A   ;  JP60189168-A   ;  JP60231470-A   ;  US3174895-A   ;  US4041116-A   GREAT LAKES CARBON CORP (GREL)   BAUD M F,  HARVEY J A;  US4064207-A   UNITED TECHNOLOGIES CORP (UNAC)   DECRESCENTE M A,  LAYDEN G K,  PIKE R A;  US4738872-A -- EP127887-A   ;  GB642744-A   ;  GB1069625-A   ;  GB1075226-A   ;  GB1092271-A   ;  GB1421672-A   ;  GB1522280-A   HOLLINGSWORTH & VOSE CO (HOVO);  GB2003124-A   ;  JP59187623-A   OJI PAPER CO (OJIP)   AWATA Y,  SAKAINO M;  US2664453-A   ;  US3539446-A   ;  US3779811-A   UNITED AIRCRAFT CORP (UNAC);  US3855002-A   UNITED AIRCRAFT CORP (UNAC);  US3867206-A   UNITED AIRCRAFT CORP (UNAC)   TROCCIOLA J C,  SCHROLL C R,  ELMORE D E;  US3905832-A   UNITED AIRCRAFT CORP (UNAC);  US3972735-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D;  US3990913-A   ;  US4017663-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D;  US4035551-A   UNITED TECHNOLOGIES CORP (UNAC)   GREVSTAD P E;  US4038463-A   UNITED TECHNOLOGIES CORP (UNAC)   LAMARINE J H,  STEWART R C,  VINE R W;  US4041116-A   GREAT LAKES CARBON CORP (GREL)   BAUD M F,  HARVEY J A;  US4043933-A   ;  US4064207-A   UNITED TECHNOLOGIES CORP (UNAC)   DECRESCENTE M A,  LAYDEN G K,  PIKE R A;  US4064322-A   UNITED TECHNOLOGIES CORP (UNAC)   BUSHNELL C L,  KUNZ H R;  US4080413-A   ;  US4115528-A   UNITED TECHNOLOGIES CORP (UNAC)   CHRISTNER L G,  NAGLE D C,  WATSON P R;  US4165349-A   UNITED TECHNOLOGIES CORP (UNAC)   SANDELLI G J;  US4173662-A   UNITED TECHNOLOGIES CORP (UNAC)   STEWART R C;  US4185131-A   UNITED TECHNOLOGIES CORP (UNAC)   GOLLER G J,  PETRAGLIA V J,  DEWS G;  US4185145-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D;  US4219611-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D;  US4226816-A   ;  US4233369-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D,  ROETHLEIN R J,  CONGDON J V;  US4245009-A   UNITED TECHNOLOGIES CORP (UNAC)   GUTHRIE R J;  US4259389-A   ;  US4269642-A   UNITED TECHNOLOGIES CORP (UNAC)   DECASPERIS A J,  ROETHLEIN R J,  BREAULT J D;  US4279970-A   ;  US4287232-A   UNITED TECHNOLOGIES CORP (UNAC)   GOLLER G J,  SALONIA J R;  US4313972-A   UNITED TECHNOLOGIES CORP (UNAC)   GOLLER G J,  SALONIA J R;  US4360485-A   UNITED TECHNOLOGIES CORP (UNAC)   EMANUELSON R C,  LUOMA W L,  TAYLOR W A;  US4365008-A   UNITED TECHNOLOGIES CORP (UNAC)   DECASPERIS J,  ROETHLEIN R J,  BREAULT R D;  US4374906-A   UNITED TECHNOLOGIES CORP (UNAC);  US4396480-A   GRACE & CO W R (GRAC)   HEGEDUS L,  LUNDSAGER C B;  US4426340-A   UNITED TECHNOLOGIES CORP (UNAC);  US4507262-A   GENERAL ELECTRIC CO (GENE)   KARAS B R,  BAUMGARTNE C E;  GB2177387-B -- GB642744-A   ;  GB1069625-A   ;  GB1075226-A   ;  GB1092271-A   ;  GB1421672-A   ;  GB1522280-A   HOLLINGSWORTH & VOSE CO (HOVO);  GB2003124-A   ;  US3539446-A   ;  US4064207-A   UNITED TECHNOLOGIES CORP (UNAC)   DECRESCENTE M A,  LAYDEN G K,  PIKE R A;  US4360485-A   UNITED TECHNOLOGIES CORP (UNAC)   EMANUELSON R C,  LUOMA W L,  TAYLOR W A