| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 5 | |
| #2 | United States | 2 | |
| #3 | Austria | 1 | |
| #4 | Germany | 1 | |
| #5 | Denmark | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Textiles and paper | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume | |
| #2 | Soldering, welding and flame cutting | |
| #3 | Form printing surfaces | |
| #4 | Photographic composing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Haas Emil | 12 |
| #2 | Studer Walter | 1 |
| #3 | Haarmann Fritz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2300366A1 | Welding-head wire feed tube - with replaceable mouthpiece and metal slash resistant interior | |
| GB190214954A | Improvements in Gas-meters. | |
| US804464A | Gas-meter. | |
| US804465A | Gas-meter. |