Number | Date | Country | Kind |
---|---|---|---|
54/156504 | Nov 1979 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3622410 | Carlson | Nov 1971 | |
4093503 | Harris et al. | Jun 1978 | |
4108715 | Ishikawa et al. | Aug 1978 | |
4285761 | Fatula, Jr. et al. | Aug 1981 |
Number | Date | Country |
---|---|---|
49-122669 | Nov 1974 | JPX |
54-30780 | Mar 1979 | JPX |
Entry |
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Ballantyne et al., Jour. Vac. Science & Tech. 10 (1973) 1094. |