Number | Date | Country | Kind |
---|---|---|---|
38016/77 | Sep 1977 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
2883861 | Valkenburg et al. | Apr 1959 | |
2990543 | Rod | Jun 1961 | |
3080752 | Rich | Mar 1963 | |
3133442 | Werner | May 1964 | |
3266311 | Andreasen et al. | Aug 1966 | |
3884074 | Robertsson | May 1975 | |
4035762 | Chamuel | Jul 1977 | |
4063457 | Zekulin et al. | Dec 1977 |
Entry |
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"DPM 380 Digital Phasemeter", Feedback Instruments Limited, (Leaflet D380). |