| 5493869 |
Recovery of at least two different and incompatible refrigerant types |
Gary P. Murray, Kenneth W. Manz |
1996-02-27 |
| 5038578 |
Refrigerant recovery and purification system |
Kenneth W. Manz |
1991-08-13 |
| 5033271 |
Refrigerant recovery and purification system |
Kenneth W. Manz |
1991-07-23 |
| 4938031 |
Refrigerant recovery and purification system |
Kenneth W. Manz |
1990-07-03 |
| 4878356 |
Storage tank scale for a refrigerant recovery system |
Robert J. Punches, Gary P. Murray |
1989-11-07 |
| 4809520 |
Refrigerant recovery and purification system |
Kenneth W. Manz |
1989-03-07 |
| 4805416 |
Refrigerant recovery, purification and recharging system |
Kenneth W. Manz, Richard Parks, Dennis W. Hickman |
1989-02-21 |
| 4768347 |
Refrigerant recovery and purification system |
Kenneth W. Manz |
1988-09-06 |
| 4441330 |
Refrigerant recovery and recharging system |
Ralph C. Lower |
1984-04-10 |
| 4364236 |
Refrigerant recovery and recharging system |
Ralph C. Lower |
1982-12-21 |