Number | Name | Date | Kind |
---|---|---|---|
3833862 | Wickersheim et al. | Sep 1974 | |
4167712 | Esterowitz et al. | Sep 1979 | |
4229710 | Shoshan | Oct 1980 |
Entry |
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W. A. Hardy et al., "Tunable Solid State Laser", IBM Technical Disclosure Bulletin, vol. 6, No. 8, Jan. 1964, pp. 66-67. |