| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 48 | |
| #2 | United Kingdom | 5 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Transport | |
| #3 | Audio-visual technology | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Load transportation vehicles | |
| #3 | Hand carts | |
| #4 | Vehicle windows, roofs and doors | |
| #5 | Motor vehicles | |
| #6 | Special information storage | |
| #7 | Transport or storage devices | |
| #8 | Vehicle wheels | |
| #9 | Pipes | |
| #10 | Lifting and pushing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dahmen Karl | 8 |
| #2 | Karl Dahmen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1003904A | Container consisting of flexible material | |
| GB1000140A | Improvements in and relating to deep freeze containers | |
| GB1005589A | Supporting-foot for goods to be transported | |
| GB934005A | Improvements in or relating to load bearing pallets | |
| US1897722A | Sound recording and reproducing means | |
| GB377276A | An improved method of and means for electro-magnetically recording acoustic signals |