|
| Patents for F28G 7 - Cleaning by vibration (611) |
|---|
| 03/16/1982 | US4320528 Ultrasonic cleaner | | 07/14/1981 | CA1104890A1 Pipe element for heating surface groups | | 01/13/1981 | US4244749 Ultrasonic cleaning method and apparatus for heat exchangers | | 09/03/1980 | EP0014719A1 A method in sonic cleaning | | 01/09/1980 | EP0006833A2 Low-frequency sound generator | | 11/29/1979 | WO1979001019A1 A method in sonic cleaning | | 11/28/1978 | CA1043329A1 Cleaning heat exchanger tubes | | 10/17/1978 | US4120699 Method for acoustical cleaning | | 04/19/1977 | US4018267 Cleaning heat exchanger tubes | | 12/14/1976 | US3997000 Mechanical cleaning device for boilers with gas flow containing sticky dust | | 07/27/1976 | US3971343 Devices for the cleaning of heating surfaces |
|