| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 5 | |
| #2 | Austria | 2 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Goods for writing upon | |
| #2 | Filing and indexing | |
| #3 | Measuring length, angles and areas |
| # | Name | Total Patents |
|---|---|---|
| #1 | Isaac Blok | 2 |
| #2 | Jacques Block | 2 |
| #3 | Gerhardus Maria Eillebrecht Ma | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1174884A | Improvements in and relating to a device for Reading-Out Coordinates | |
| GB977670A | A device for storing drawings or other sheets of large dimensions in suspended condition | |
| DE1212939B | Suspension device for large-format sheets |