| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 27 | |
| #2 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping | |
| #3 | Mechanical elements | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Scaffolding | |
| #3 | Safety devices | |
| #4 | Gearing | |
| #5 | Transport or storage devices | |
| #6 | Sanitary equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bachmann Georg | 24 |
| #2 | Bachmann Annemarie | 1 |
| #3 | Bachmann Irmgard Claus Geb | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB742788A | An improved pit prop made of steel or light metal | |
| GB404174A | Improved connection of the steel or iron bows in timbering underground-workings |