Patent Abstracts of Japan, vol. 16, No. 191 (M-1245), May 8, 1992, JP 04 026002, Jan. 29, 1992, and GB 2 244 123, Nov. 20, 1991. |
Patent Abstracts of Japan, vol. 12, No. 146 (E-605), May 6, 1988, JP 62 262358, Nov. 14, 1987. |
Patent Abstracts of Japan, vol. 17, No. 249 (E-1366), May 18, 1993, JP 04 370644, Dec. 24, 1992. |
Patent Abstracts of Japan, vol. 5, No. 74 (E-57) (746), May 16, 1981, JP 56 022041, Mar. 2, 1981. |
Patent Abstracts of Japan, vol. 1, No. 5 (M-004), Mar. 11, 1977, JP 51 120075, Oct. 21, 1976. |
Patent Abstracts of Japan, vol. 1, No. 5 (M-004), Mar. 11, 1977, JP 51 120076, Oct. 21, 1976, and Derwent Publications, AN 76-91479X [49], JP 51 120076, Oct. 21, 1976. |