Number | Name | Date | Kind |
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4276614 | Nelson et al. | Jun 1981 |
Entry |
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Journal of Applied Physics--vol. 52, No. 3; Mar. 1981 pp. 2380-2382. |
"Design of Bubble Device Elements Employing Ion-Implanted Propagation Patterns" by T. J. Nelson et al., Bell System Technical Journal vol. 5, pp. 229-257 (Feb. 1980). |