| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 3 | |
| #4 | France | 2 | |
| #5 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Transport | |
| #4 | Consumer goods | |
| #5 | Machine tools | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Belts or cables for driving | |
| #2 | Unspecified technologies | |
| #3 | Nails | |
| #4 | Vehicle tyre repairing | |
| #5 | Buttons, pins and buckles | |
| #6 | Personal adornments | |
| #7 | Unspecified technologies | |
| #8 | Ships | |
| #9 | Tools for connecting or disengaging | |
| #10 | Animal care |
| # | Name | Total Patents |
|---|---|---|
| #1 | Steigenberger Friedrich | 3 |
| #2 | Friedrich Steigenberger | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB683091A | Releasable coupling member for chains, and the like | |
| GB465686A | Improvements in or relating to hooks for chains, straps and the like | |
| US2124276A | Connection for straps, chains, or the like | |
| GB452217A | Coupling device for chains or the like | |
| US1915454A | Device for opening the mouth of an animal and holding it open | |
| US1802224A | Coupling for chains and the like |