Number | Name | Date | Kind |
---|---|---|---|
3925790 | Fishbeck | Dec 1975 | |
3938641 | Fulton | Feb 1976 | |
4010835 | Martin et al. | Mar 1977 | |
4033444 | Beery | Jul 1977 |
Number | Date | Country |
---|---|---|
2515557 | Oct 1976 | DEX |
Entry |
---|
IBM Tech. Disc. Bulletin, J. W. Raider, vol. 17, No. 12, May 1975, pp. 3560-3561. |
IBM Tech. Disc. Bulletin, D. P. Darwin, vol. 18, No. 9, Feb. 1976, pp. 2762-2763. |