| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | United States | 5 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Metal wire processing | |
| #2 | Chairs and beds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Powers George G | 10 |
| #2 | Rhinevault Clarence A | 2 |
| #3 | Frederick Clarence H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB521322A | Machine for producing springs | |
| US2144387A | Spring making machine | |
| US1963054A | Wire spring | |
| US1963055A | Wire spring | |
| US1963053A | Wire spring | |
| US1968802A | Method and machine for producing springs | |
| CA356476A | Wire spring | |
| CA357203A | Spring making apparatus | |
| CA356475A | Wire spring | |
| CA356473A | Spring structure | |
| CA356474A | Wire spring |