Number | Name | Date | Kind |
---|---|---|---|
3443166 | Ing, Jr. et al. | May 1969 | |
3890170 | Russ | Jun 1975 | |
3946417 | Jacobus, Jr. | Mar 1976 | |
3947840 | Craford et al. | Mar 1976 | |
4053914 | Goodwin | Oct 1977 |
Entry |
---|
Marinace, I.B.M. Tech. Discl. Bull.; vol. 11, No. 4, Sep. 1968, p. 398. |