| Patents for F22B 27 - Instantaneous or flash steam boilers (407) | |
|---|---|
| 12/1977 | |
| 12/20/1977 | US4063414 Method and apparatus for producing high energy gaseous fluid substantially not containing physiologically harmful substances |
| 06/1977 | |
| 06/14/1977 | US4029056 Compact indirect heating vapor generator |
| 02/1977 | |
| 02/15/1977 | US4007712 Water heater |
| 01/1977 | |
| 01/04/1977 | US4000777 Rotary heat exchanger |
| 12/1976 | |
| 12/07/1976 | US3996477 Thermal prime mover |
| 09/1976 | |
| 09/28/1976 | US3982695 Steam producing device |
| 08/1976 | |
| 08/24/1976 | US3976129 Spiral concentric-tube heat exchanger |