Number | Name | Date | Kind |
---|---|---|---|
3539344 | Russell | Nov 1970 | |
4365258 | Geyer et al. | Dec 1982 |
Number | Date | Country |
---|---|---|
217681 | Mar 1957 | AUX |
469666 | Dec 1928 | DE2 |
816287 | Jul 1959 | GBX |
Entry |
---|
Research Disclosure, Jun. 1984, pp. 280-284 #24238, "Rigid Optical Disks". |