| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | United Kingdom | 5 | |
| #3 | Morocco | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Percussive tools | |
| #3 | Certain plastics | |
| #4 | Shafts | |
| #5 | Shaping of plastics | |
| #6 | Railway shifting | |
| #7 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Altenhain August | 3 |
| #2 | Henkel Karl | 2 |
| #3 | Hausherr Rudolf | 2 |
| #4 | Wasserfuhr Walter | 1 |
| #5 | Zimmermann Dipl-Berging Horst | 1 |
| #6 | Buerger August | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB781095A | Traction device for conveyor trucks | |
| GB794480A | Improvements in rotary and percussive rock drills | |
| GB794481A | Improvements in rotary and percussive rock drills | |
| GB721156A | Improvements in rock drilling machines | |
| GB724180A | Improvements in travelling drilling apparatus for underground mineworks |