Number | Name | Date | Kind |
---|---|---|---|
3713030 | Kantrowitz et al. | Jan 1973 | |
3946332 | Samis | Mar 1976 | |
4028635 | Brunet | Jun 1977 | |
4053851 | Krupke | Nov 1977 | |
4053852 | Krupke | Nov 1977 |
Entry |
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Osgood, Jr., R. M., Applied Physics Letters, vol. 28, No. 6, Mar. 15, 1976, pp. 342-345. |