World Patents Index Abstract Nos. EP 8101 dated Jan. 20, 1980, BE 845134 dated Feb. 14, 1977, DE 2629954 dated Feb. 3, 1977, DE 2629953 dated Feb. 3, 1977, JP 50034031 dated Apr. 2, 1975, GB 1368601 dated Oct. 2, 1974, GB 1365999 dated Sep. 4, 1974, DE 2223524 (date unknown), DE 2313544 (date unknown), DE 2313542 (date unknown), GB 1330157 (date unknown), BE 786202 (date unknown), DE 2216857 (date unknown), NL 7002815 (date unknown), NL 7002814 (date unknown), GB 1192788 (date unknown), BE 868607 dated Jan. 2, 1979. |
World Patents Index Abstract Nos. JP 53040022 dated Apr. 12, 1978, CA 990457 dated Jun. 8, 1976, FR 2045426 (date unknown), JP 70020590 (date unknown), CA 845657 (date unknown), JP 3050120 dated Mar. 4, 1991, JP 3023221 dated Jan. 31, 1991, EP 406194 dated Jan. 2, 1991, JP 2194063 dated Jul. 31, 1990, GB 2226018 dated Jun. 20, 1990, JP 1264932 dated Oct. 23, 1989, JP 62185761 dated Aug. 14, 1987, JP 61295234 dated Dec. 26, 1986, JP 61281018 dated Dec. 11, 1986, JP 60245671 dated Dec. 5, 1985, GB 2108098 dated May 11, 1983. |
World Patents Index Abstract Nos. EP 78632 dated May 6, 1983, GB 2108097 dated May 11, 1983, B 2088348 dated Jun. 9, 1982, EP 44515 dated Jan. 27, 1982, EP 32426 dated Jul. 22, 1981, EP 32425 dated Jul. 22, 1981, EP 254861 dated Feb. 3, 1988, EP 75197 dated Mar. 30, 1983. |