| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 3 | |
| #2 | United Kingdom | 3 | |
| #3 | Germany | 2 | |
| #4 | Belgium | 1 | |
| #5 | Canada | 1 | |
| #6 | Ireland | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Basic materials chemistry | |
| #4 | Machine tools | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | General building constructions | |
| #3 | Foundations and excavations | |
| #4 | Shafts | |
| #5 | Machines for making railways | |
| #6 | Accessories for machine tools | |
| #7 | Unspecified technologies | |
| #8 | Soaps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kleijn Machiel K | 2 |
| #2 | Cuperus Jacob L A | 2 |
| #3 | Schouten Wilhelmus Johannes | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IE25518L | Driving tubular piles | |
| GB968618A | Method for the introduction of a tube into the ground | |
| US3067546A | Sleeve-shaped plug for a pin-shaped fastening member | |
| GB824748A | Sleeve-shaped wall or like plug | |
| DE1031954B | Shielding device for rotating cutting tools for woodworking | |
| CA651370A | Sleeve-shaped plug for a pin-shaped fastening member |