| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Consumer goods | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Personal adornments | |
| #3 | Making metal chains | |
| #4 | Grinding or polishing devices | |
| #5 | Unspecified technologies | |
| #6 | Buttons, pins and buckles | |
| #7 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ferdinand Armbrust | 4 |
| #2 | Hess William F | 3 |
| #3 | Seebeck Howard D | 2 |
| #4 | Karl Wacker | 2 |
| #5 | Keene George E | 1 |
| #6 | Gottlob Armbrust | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2454299A | Finishing machine for ornamental chains | |
| US2300624A | Multiple curb chain | |
| US2257356A | Method of making ornamental chains | |
| US2242824A | Automatic chain machine | |
| US2229149A | Ornamental chain machine | |
| US2170073A | Ornamental chain | |
| US2217339A | Ornamental chain | |
| US2042808A | Safety chain | |
| US2042807A | Scarf holder | |
| US1829493A | Bracelet | |
| US1766477A | Fastening device for watch bracelets | |
| US1745140A | Bracelet |