| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 3 | |
| #3 | Germany | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Presses | |
| #2 | Unspecified technologies | |
| #3 | Servomotors | |
| #4 | Forging | |
| #5 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Matter Albert J | 3 |
| #2 | Sheppard Joseph R | 2 |
| #3 | Feuchter Robert J | 2 |
| #4 | Harvey Slater | 2 |
| #5 | Slater Harvey | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2294397A | Air ballasted accumulator | |
| US2294396A | Air ballasted accumulator and control circuit for hydraulic presses | |
| US2169113A | Hydraulic bending press | |
| DE432720C | Automatic hydraulic forming press with swiveling counter punch | |
| US1523602A | Press | |
| US1525945A | Automatic press | |
| US1378141A | Valve | |
| US1483126A | Press | |
| CA235639A | Press | |
| CA387529A | Hydraulic bending press | |
| CA217026A | Valve control |