Number | Name | Date | Kind |
---|---|---|---|
2919119 | Vyverberg et al. | Dec 1959 | |
3041167 | Blakney et al. | Jun 1962 | |
3199086 | Kallmann et al. | Aug 1965 | |
3288624 | Clark | Nov 1966 | |
3355289 | Hall et al. | Nov 1967 | |
3438706 | Tanaka et al. | Apr 1969 | |
3457070 | Watanabe et al. | Jul 1969 | |
3519420 | Goffe | Jul 1970 | |
3520681 | Goffe | Jul 1970 | |
3556781 | Levy et al. | Jan 1971 | |
3656990 | Goffe | Apr 1972 |
Number | Date | Country |
---|---|---|
1,082,914 | Sep 1967 | UK |
Entry |
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Cassiers, R. M. "Memory Effects in Electrophotography," The Journal of Photographic Science, vol. 10, (1962), pp. 57-64. |