| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | United Kingdom | 4 | |
| #3 | Austria | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Making screws | |
| #2 | Sawing | |
| #3 | Making forged metal products | |
| #4 | Making needles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lankhorst Otto | 6 |
| #2 | Otto Lankhorst | 5 |
| Publication | Filing date | Title |
|---|---|---|
| GB190225814A | Improvements in Machines for Forming Screw-threads. | |
| GB190225813A | Improved Apparatus for use in Forging Horse-shoe-nails. | |
| GB190217043A | Improvements in Apparatus for Cutting Metal Rods or Bars. | |
| GB190217042A | Improvements in Presses for Shaping Heads on Metal Articles. |