| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | Austria | 6 | |
| #3 | Sweden | 6 | |
| #4 | Switzerland | 4 | |
| #5 | United Kingdom | 4 | |
| #6 | United States | 4 | |
| #7 | France | 3 | |
| #8 | Italy | 3 | |
| #9 | Netherlands | 3 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Data recognition and presentation | |
| #2 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sandt G | 18 |
| #2 | Weidanz H | 16 |
| #3 | Ostermeier H | 3 |
| #4 | Weidanz Herbert | 2 |
| #5 | Sandt Gerhard | 2 |
| #6 | Herbert Weidanz | 2 |
| #7 | Ing Heinrich Ostermeier | 2 |
| #8 | Gerhard Sandt | 2 |
| #9 | Gerhardt Sandt | 2 |
| #10 | Voss H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH559943A5 | Data storage facility - has selection from many sheet media with extraction of recording medium from front recess | |
| GB1394465A | Device for setting the position of a mobile processing station relative to the tracks of sheetlike record carriers | |
| GB1394466A | Storage unit | |
| US3721342A | Apparatus for selecting an index card of sheet-like form | |
| US3645393A | Device for selecting index cards of sheetlike form |