| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 18 | |
| #2 | United Kingdom | 2 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Electrical machinery and energy | |
| #4 | Measurement | |
| #5 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Railway bodies | |
| #3 | Swimming pools | |
| #4 | Measuring volume | |
| #5 | Installation of electric cables | |
| #6 | General building constructions | |
| #7 | Handling thin material |
| # | Name | Total Patents |
|---|---|---|
| #1 | Drouard Jacques | 1 |
| #2 | Gourmelon Aime | 1 |
| #3 | Legrand Jules | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1814041A1 | Device for pulling underground cables, particularly applicable to urban planning facilities | |
| GB791870A | Improvements in or relating to methods of and devices for laying complete railway track lengths | |
| GB460947A | Improvements in motor railway vehicles or trucks |