Patent Abstracts of Japan, vol. 7, No. 109 (P-196) May 12, 1983 & JP-A-58 031 346 (Ricoh K.K.) Feb. 24, 1983. |
Patent Abstracts of Japan, vol. 13, No. 75 (P-831) Feb. 21, 1989 & JP-A-63 261 272 (Minolta Camera) Oct. 27, 1988. |
Patent Abstracts of Japan, vol. 13, No. 75 (P-831) Feb. 21, 1989 & JP-A-63 261 273 (Minolta Camera) Oct. 27, 1988. |
Patent Abstracts of Japan, vol. 13, No. 75 (P-831) Feb. 21, 1989 & JP-A-63 261 274 (Minolta Camera) Oct. 27, 1988. |
Patent Abstracts of Japan, vol. 15, No. 67 (P-1167) Feb. 18, 1991 & JP-A-2 289 867 (Minolta Camera) Nov. 29, 1990. |