Number | Name | Date | Kind |
---|---|---|---|
1405534 | Merritt | Feb 1922 | |
3624661 | Shebanon | Nov 1971 | |
3644931 | Stringer | Feb 1972 | |
3718936 | Rice | Feb 1973 | |
3968500 | Meisel | Jul 1976 | |
4082619 | Dehnert | Apr 1978 | |
4151535 | Uberbacher | Apr 1979 | |
4157554 | Bahr | Jun 1979 | |
4162503 | Potma | Jul 1979 | |
4189736 | DeFilipps | Feb 1980 | |
4287525 | Tagawa | Sep 1981 |
Entry |
---|
IBM Technical Disclosure Bulletin, vol. 20, No. 10, March 1978, p. 3924, "Laminated, Ceramic Electro-Erosion Printhead", J. N. Humenik et al. |