| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 2 | |
| #2 | Germany | 2 | |
| #3 | France | 2 | |
| #4 | Sweden | 2 | |
| #5 | Austria | 1 | |
| #6 | Belgium | 1 | |
| #7 | Spain | 1 | |
| #8 | Italy | 1 | |
| #9 | Netherlands | 1 | |
| #10 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Computer technology |
| # | Technology | |
|---|---|---|
| #1 | Advertising | |
| #2 | Electric digital data processing | |
| #3 | Display controls |
| # | Name | Total Patents |
|---|---|---|
| #1 | Birk Klaus-Peter | 4 |
| #2 | Birk K-P | 3 |
| Publication | Filing date | Title |
|---|---|---|
| DE3240030A1 | Electronic display board for share prices or the like and control method used for the same | |
| CH647611A5 | Plate for characters or names | |
| DE2727406A1 | Moving character indicator mechanism - employs flexible belt guided round to pulleys to housing viewing window | |
| ATA719376A | Quote display for shares od. dgl. |