| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 12 | |
| #2 | United Kingdom | 5 | |
| #3 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Making gears or toothed racks | |
| #3 | Grinding or polishing devices | |
| #4 | Sawing | |
| #5 | Unspecified technologies | |
| #6 | Making screws | |
| #7 | Metal tempering | |
| #8 | Making metal sheets | |
| #9 | Metal-working |
| # | Name | Total Patents |
|---|---|---|
| #1 | Preis Georg | 9 |
| #2 | Georg Preis | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US3045514A | Reaming tool for cylindrical bores | |
| GB853491A | Apparatus for machining workpieces | |
| US2916800A | Device for finish rolling of cylinders | |
| GB727362A | A device for finish rolling of cylindrical surfaces | |
| GB474505A | Improvements in and relating to spur gears | |
| GB304137A | Improved method of cutting spur and bevel gears | |
| GB297689A | Improvements in toothed gearings | |
| US1820246A | Gear |