| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | France | 3 | |
| #3 | Germany | 2 | |
| #4 | Austria | 1 | |
| #5 | Switzerland | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Measuring length, angles and areas | |
| #2 | Nails | |
| #3 | Making screws | |
| #4 | Unspecified technologies | |
| #5 | Thread cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schaurte Werner T | 1 |
| #2 | August Thum | 1 |
| #3 | Bauer Schaurte Rheinische Schr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB490039A | Improvements in snap-gauges | |
| GB483746A | Improvements in screws or screw bolts | |
| US2060593A | Metal element and method of making the same | |
| GB415371A | Improvements in or relating to the manufacture of screws | |
| GB370773A | A machine for rolling screw threads | |
| DE641092C | Method of manufacturing high tensile strength bolts by cold working a low carbon mild steel | |
| DE517622C | Tolerance gauge for testing internal threads |