| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering | |
| #3 | Mechanical elements | |
| #4 | Materials and metallurgy | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Rail vehicle suspensions | |
| #3 | Shafts | |
| #4 | Building materials | |
| #5 | Vehicle servicing | |
| #6 | Toys | |
| #7 | Railway shifting | |
| #8 | Railway bodies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koy Erich | 5 |
| Publication | Filing date | Title |
|---|---|---|
| GB458243A | Improvements in roller bearings for railway trucks | |
| GB453692A | Improvements in switches for portable railways |