| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 21 | |
| #2 | United Kingdom | 6 | |
| #3 | United States | 3 | |
| #4 | France | 2 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machine tools | |
| #3 | Furniture and games | |
| #4 | Measurement | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jakob Haw | 3 |
| #2 | Sauer Arthur | 2 |
| #3 | Haw Jakob | 2 |
| #4 | Hawkins Peter Michel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB413169A | A skittle playing apparatus | |
| GB384523A | Improvements in or relating to metal screw propellers | |
| US1767127A | Adjustable propeller | |
| GB300501A | Improvements in or relating to screw propellers | |
| GB283423A | Propeller for aircraft | |
| GB267773A | Improvements in metal screw propellers | |
| US1635840A | Metal propeller | |
| US1488243A | Propeller for aircraft | |
| GB159800A | Improvements in and relating to propellers for air-craft |