Number | Date | Country | Kind |
---|---|---|---|
54-82609 | Jul 1979 | JPX | |
54-116767 | Sep 1979 | JPX |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/JP80/00153 | 7/1/1980 | 2/26/1981 | 7/27/1981 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO81/00165 | 1/22/1981 |
Number | Name | Date | Kind |
---|---|---|---|
2894798 | Potter | Jul 1959 | |
3554798 | Nacci | Jan 1971 |
Entry |
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IBM/TDB vol. 23, No. 2, Jul. 1980, p. 843 "Magnetic Video Disk . . ." by Lean. |