Number | Name | Date | Kind |
---|---|---|---|
1897586 | Pirani | Feb 1933 | |
4342937 | Nagel | Aug 1982 | |
4803404 | Anderson | Feb 1989 | |
4810938 | Johnson et al. | Mar 1989 | |
4812702 | Anderson | Mar 1989 | |
4910439 | El-Hamamsy et al. | Mar 1990 | |
4972120 | Witting | Nov 1990 |
Number | Date | Country |
---|---|---|
0206025 | Jan 1984 | DEX |
0003849 | Jan 1985 | JPX |
Entry |
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Waymouth, John F., "Electric Discharge Lamps", M.I.T. Press, 1971, pp. 266-277. |