| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | Austria | 3 | |
| #3 | France | 3 | |
| #4 | Denmark | 2 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Basic materials chemistry | |
| #4 | Materials and metallurgy | |
| #5 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Unspecified technologies | |
| #3 | Milling | |
| #4 | Gas, coke and tar production | |
| #5 | Pipes | |
| #6 | Feeding fuel to combustion device | |
| #7 | Building materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sarek Heinrich | 2 |
| #2 | Rosenbaum Bedrich | 2 |
| #3 | Prager Eisen-Industrie-Gesells | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE625416C | Method and device for coking coal | |
| DE616084C | Screw nut that can be used on both sides for dynamic loads | |
| DE574213C | Drum mill | |
| GB391439A | Improvements in or relating to nut locking devices | |
| DE584182C | Double nut for additional radial locking | |
| DE578588C | Device for charging furnaces with dust-like fuel | |
| DE560745C | Drum mill | |
| CA340608A | Nut lock |