| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 11 | |
| #2 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Scaffolding | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Symons Arthur H | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US2580330A | Tie rod for concrete wall forms | |
| US2584822A | Wall form spreader tie | |
| CA552439A | Wooden concrete wall form panel with metallic brace arrangement | |
| CA457743A | Rod clamp | |
| CA317486A | Shore | |
| CA482060A | Tie rod for concrete wall forms | |
| CA471419A | Tie devices for wall forms | |
| CA471420A | Wall forms | |
| CA547364A | Brace arrangement for concrete wall form | |
| CA444774A | Adjustable shore | |
| CA527892A | Scaffold | |
| CA547363A | Wall form panel | |
| CA608837A | Scaffold |