Number | Date | Country | Kind |
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3811922 | Apr 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4158505 | Mathisen et al. | Jun 1979 | |
4820048 | Barnard | Apr 1989 |
Entry |
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Weekley et al., "A Versatile Electronic Computer for Photoelectric Spectrochemical Analysis", Applied Spectroscopy, vol. 18, #1, 1964, p. 21. |