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| Patents for F01C 9 - Oscillating-piston machines or engines (915) |
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| 11/30/1976 | US3994640 Spherical rotary steam engine | | 11/02/1976 | US3989421 Housing construction for slant axis rotary mechanism | | 09/28/1976 | US3982861 Rotor construction for slant axis rotary mechanisms | | 09/28/1976 | US3982860 Thrust bearings for slant axis rotary mechanisms | | 09/21/1976 | US3981640 Slant axis rotary mechanism | | 09/21/1976 | US3981639 Nutating engine | | 09/21/1976 | US3981638 Rotary piston machine | | 08/03/1976 | US3972658 Housing for slant axis rotary mechanism | | 08/03/1976 | US3972657 Slant axis rotary mechanism | | 07/27/1976 | US3971603 Thrust bearing lubrication | | 06/29/1976 | US3966366 Deflection compensation for slant axis rotary mechanisms | | 04/06/1976 | US3948226 Internal combustion engine | | 03/23/1976 | US3945348 Two-chamber, two-stroke rocking piston internal combustion engine | | 03/09/1976 | US3942384 Swashplate machines | | 01/27/1976 | US3934559 Anti-pollutant spherical rotary engine with automatic supercharger |
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