Number | Name | Date | Kind |
---|---|---|---|
2911299 | Baril et al. | Nov 1959 | |
3264104 | Reichel | Aug 1966 | |
3639185 | Colom | Feb 1972 | |
3649393 | Hatzakis | Mar 1972 | |
3707373 | Martinson et al. | Dec 1972 | |
3779774 | Cope et al. | Dec 1973 | |
3841874 | Nishino | Oct 1974 | |
3850633 | Ross et al. | Dec 1974 | |
3850733 | Morau et al. | Nov 1974 |
Entry |
---|
Cortellino et al., "IBM Technical Disclosure Bulletin," vol. 15, No. 1, 6/1972, p. 174. |