| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 17 | |
| #2 | Austria | 3 | |
| #3 | Switzerland | 3 | |
| #4 | Belgium | 2 | |
| #5 | Spain | 2 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Audio-visual technology | |
| #3 | Packaging and shipping | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Coin-freed | |
| #2 | Special information storage | |
| #3 | Transferring liquids | |
| #4 | Kitchen equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rietzel Heinz | 7 |
| #2 | Heinz Rietzel | 3 |
| #3 | Gradl Rudolf | 2 |
| #4 | Woyciel Wolfgang | 1 |
| #5 | Fiedler Alexander | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES250165A1 | Improvements in and relating to automatic vending machines | |
| ES231176A1 | Apparatus for the automatic change of sound plates in a circular form (Machine-translation by Google Translate, not legally binding) |