Number | Date | Country | Kind |
---|---|---|---|
6933/77 | Jun 1977 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3229564 | Meltzer | Jan 1966 | |
3565568 | Hock | Feb 1971 |
Number | Date | Country |
---|---|---|
1959612 | Jun 1971 | DEX |
Entry |
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Melsheimer et al. "Portable Visible-Infrared Reflectometer", Rev. Sci. Inum. vol. 48, No. 4 (Apr. 1977) pp. 482-483. |