| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | Switzerland | 5 | |
| #3 | France | 4 | |
| #4 | Spain | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Italy | 2 | |
| #7 | United States | 2 | |
| #8 | Austria | 1 | |
| #9 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Weighing | |
| #2 | Measuring force, work and fluid pressure | |
| #3 | Gearing | |
| #4 | Special measuring | |
| #5 | Measuring length, angles and areas |
| # | Name | Total Patents |
|---|---|---|
| #1 | Haack Werner | 12 |
| #2 | Werner Haack | 4 |
| #3 | Uerunaa Haaku | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3121028A1 | Manually operable balance | |
| DE2838914A1 | Knife edge bearing for measurement instruments - consists of bearing plates arranged to form V=shape and fixed to base by spring wire support | |
| DE2830339A1 | MECHANICAL SCALE | |
| US4090576A | Sliding-weight scale | |
| GB1244790A | Apparatus for measuring force, in particular a beam balance | |
| GB1138585A | An automatic weighing machine of the steel-yard type |