Number | Name | Date | Kind |
---|---|---|---|
60109 | Woodward | Nov 1866 | |
504890 | Ohmart | Sep 1893 | |
708365 | Kliegl et al. | Sep 1902 | |
1269422 | Gordon | Jun 1918 | |
2165078 | Toulon | Jul 1939 | |
2269905 | Graham | Jan 1942 | |
2300251 | Flint | Oct 1942 | |
3161718 | DeLuca | Dec 1964 |
Entry |
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Caudell et al., "Active Optics with RTV Silicone Rubber" SPIE, vol. 115, Advances in Replicated & Plastic Optics, pp. 18-24. |