| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | United Kingdom | 4 | |
| #3 | Canada | 3 | |
| #4 | Belgium | 2 | |
| #5 | Germany | 1 | |
| #6 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Separating solids | |
| #2 | Unspecified technologies | |
| #3 | Springs | |
| #4 | Advertising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Simpson Lowe E | 5 |
| #2 | Crain Allan M | 5 |
| #3 | Corbin Vernon L | 2 |
| #4 | Corbin V L | 1 |
| #5 | M Crain Allan | 1 |
| #6 | Lowe Simpson | 1 |
| #7 | Crain A M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1206630A | Cover hold-down clamp for screening mahines | |
| US3406823A | Releasable screen tensioning and connecting means | |
| US3081874A | Screen tensioning device | |
| GB829811A | Improvements in or relating to sifting machines | |
| US2946440A | Gyratory sifting machine | |
| US2226416A | Cleaner for sifting screens | |
| US1291206A | Mill-roll marker. | |
| US1265267A | Sifting-machine. | |
| US1141660A | Sifting-machine. | |
| CA650578A | Gyratory sifting machine | |
| CA817207A | Releasable screen tensioning and connecting means | |
| CA673610A | Screen tensioning device |