| All Patents in class 415/204 |
Patents 16 -
21
of 21
      |
| Number | Date | Patentee | Title | Type |
| 1,986,836 | Jan. 08, 1935 | M.B. MacNeille | Method of Making Centrifugal Pumps | centrifugal pumps |
| 2,301,857 | Nov. 10, 1942 | A.A. Criqui | Blower fan | |
| 2,642,219 | Jun. 16, 1953 | W.R. Heath | Fan housing | |
| 2,655,868 | Oct. 20, 1953 | R.C. Glazebrook, F.I. Lindau | Bladeless Pump Impeller | centrifugal pumps |
| 2,727,680 | Dec. 20, 1955 | H.C. Burgin, W.R. Elliot, R.D. Robson, R.D. Madison | Centrifugal fan | |
| 2,733,682 | Feb. 07, 1956 | R.R. Langteau | Pump Shaft Indexing Means | pump stuffing boxes and seals |
