| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | Austria | 3 | |
| #3 | Switzerland | 2 | |
| #4 | France | 2 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Typewriters | |
| #2 | Sewing | |
| #3 | Supplying combustion engines | |
| #4 | Special sewing techniques |
| # | Name | Total Patents |
|---|---|---|
| #1 | Haftung Special-Maschinen-Fabr | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE322751C | Interchangeable key button | |
| DE322747C | Height switching device for the platen | |
| DE354359C | Machine for sewing buttons, for the production of button bars u. Like. With different types of stitch | |
| DE322750C | Interchangeable platen | |
| DE355689C | Machine for sewing buttons for the production of button bars u. Like. With different types of stitch | |
| DE332719C | Exchangeable type lever basket | |
| DE329963C | Impact-absorbing key switch assembly |