| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | Switzerland | 3 | |
| #3 | Spain | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Belgium | 1 | |
| #7 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Scaffolding | |
| #2 | Nails | |
| #3 | General building constructions | |
| #4 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mulder Rudolf | 8 |
| #2 | Rudolf Mulder | 3 |
| Publication | Filing date | Title |
|---|---|---|
| NL7811721A | Scaffolding tube clamp unit - has tube seats with hinged clamp brackets secured by wedges permanently held in pivoted wedge holders | |
| DE2228409A1 | SCAFFOLDING CLAMP | |
| DE1901570A1 | Method for assembling a scaffolding, yoke for use in this method and scaffolding assembled using this method or part thereof | |
| GB827252A | A method of interconnecting two concrete or reinforced concrete building blocks and blocks for carrying out the method | |
| GB603758A | Improvements in and relating to clamps for scaffolding and like structures |