| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 35 | |
| #2 | Switzerland | 15 | |
| #3 | United Kingdom | 7 | |
| #4 | France | 2 | |
| #5 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machine tools | |
| #3 | Mechanical elements | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Measuring length, angles and areas | |
| #2 | Analysing materials | |
| #3 | Shafts | |
| #4 | Special measuring | |
| #5 | Grinding or polishing devices | |
| #6 | Gearing | |
| #7 | Frames | |
| #8 | Postal sorting | |
| #9 | Sawing | |
| #10 | Accessories for machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Carl Mahr | 13 |
| #2 | Mahr Carl | 2 |
| #3 | Buck Friedrich | 1 |
| #4 | Riethmueller Hermann | 1 |
| #5 | Ehrler Theodor | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB985374A | Clamping device for detector device measuring instruments | |
| GB850564A | A vernier caliper | |
| GB860138A | Precision linear dimension measuring instrument | |
| GB873355A | Precision linear dimension measuring instrument | |
| GB668679A | Precision dial gauge having electrical contacts | |
| GB681719A | Gear testing apparatus | |
| GB526932A | Improvements in or relating to linear dimension gauges |