Number | Date | Country | Kind |
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11-200689 | Jul 1999 | JP |
Number | Name | Date | Kind |
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4052129 | Schawlow et al. | Oct 1977 | A |
Entry |
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K. B. Earnshaw et al., Two-Laser Optical Distance-Measuring Instrument that Corrects for the Atmospheric Index of Refraction, “Applies Optics” vol. 11, No. 4, Apr. 1972. |