| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Swimming pools | |
| #2 | Spraying devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stanwood David A | 4 |
| #2 | Baker William O | 4 |
| #3 | Prizler Paul D | 2 |
| #4 | Konopka Alfred Z | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA722019A | Automatic spin filter | |
| CA809448A | Valve and liquid flow system | |
| CA792045A | Method and apparatus of cleaning a pool | |
| CA828637A | Liquid jet producing device | |
| CA914436A | Turbulence dispelling float device and string | |
| CA722018A | High flow sand filter | |
| CA682458A | Swimming pool grab rail structure | |
| CA791471A | Automatic skim tank and system | |
| CA802067A | Diving board |