| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | Germany | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Greece | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Measuring volume | |
| #3 | Installations for obtaining water | |
| #4 | Measuring distances |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wachal Dipl-Ing Stanislaw | 2 |
| #2 | Poponczyk Tadeusz | 2 |
| #3 | Bllaszczak Zbigniew | 1 |
| #4 | Gladki Edward | 1 |
| #5 | Gradys Sllawomir | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1162881A | Electric Liquid Level Meter | |
| GB1104445A | Rotary hollow drill | |
| DE1242532B | Drilling template | |
| GB1108947A | Improvements in or relating to well screens |