Number | Name | Date | Kind |
---|---|---|---|
3104804 | Kirkowski | Sep 1963 | |
3524368 | Goldman | Aug 1970 | |
3580120 | Adams et al. | May 1971 | |
3602080 | Sickel | Aug 1971 | |
3710666 | Keyes et al. | Jan 1973 | |
3800643 | Scott et al. | Apr 1974 | |
4425829 | Kranik et al. | Jan 1984 | |
4821614 | Fleet et al. | Apr 1989 | |
4872381 | Stroms | Oct 1989 |
Entry |
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IBM Technical Disclosure Bulletin, vol. 16, No. 12, pp. 3933-3934, May, 1974, J. R. Kranik et al., "Air Spring" Programmable via Punching Head. |
IBM Technical Disclosure Bulletin, vol. 13, No. 9, p. 2536, Feb., 1971, C. J. Lucas et al., "Multiple via Punch." |
IBM Technical Disclosure Bulletin, vol. 20, No. 4, pp. 1379-1380, Sep. 1977, T. J. Cochran et al., "Automated Punch Apparatus for Forming via Holes in a Ceramic Green Sheet." |