Number | Date | Country | Kind |
---|---|---|---|
2829502 | Jul 1978 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1523629 | Bullock | Jan 1925 | |
1786158 | Hawes | Dec 1930 | |
1790460 | Capeliuschnicoff | Jan 1931 | |
2488660 | Conkle | Nov 1949 | |
2654572 | Arutunoff | Oct 1953 | |
2937008 | Whittle | May 1960 | |
3015973 | Doerries | Jan 1962 | |
3143006 | Kratochvil | Aug 1964 | |
3598188 | Foster | Aug 1971 | |
3669199 | Cullen et al. | Jun 1972 | |
4108023 | Garrison | Aug 1978 |
Number | Date | Country |
---|---|---|
2900189 | Jan 1978 | DEX |
545008 | Jul 1956 | ITX |
629687 | May 1959 | SUX |
Entry |
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"Rotation-Speed Reducing Device for Turbodrills Slow Turbine," French Institute of Petroleum, 12/75. |