Number | Date | Country | Kind |
---|---|---|---|
2648298 | Oct 1976 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3267485 | Howell | Aug 1966 | |
3618118 | Lloyd | Nov 1971 | |
3624661 | Shebanow | Nov 1971 | |
3827056 | Vano | Jul 1974 | |
3893128 | Bauerlen | Jul 1975 | |
4082619 | Dehnert | Apr 1978 |
Entry |
---|
IBM Tech. Discl. Bulletin, vol. 20, No. 10, Mar. 1978, p. 3924, "Lamenated Ceramic Electro-Erosion Print Head" Humenik et al. |