| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 5 | |
| #2 | Germany | 3 | |
| #3 | France | 3 | |
| #4 | United Kingdom | 3 | |
| #5 | Belgium | 2 | |
| #6 | Canada | 2 | |
| #7 | Denmark | 2 | |
| #8 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Furniture and games | |
| #3 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Goods for writing upon | |
| #2 | Office furniture | |
| #3 | Treating harvested food |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pieper Willi | 5 |
| #2 | Reppisch-Werk A-G | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AT214315B | Drawing machine | |
| DE1089299B | Drawing machine | |
| DE1093700B | Drawing machine | |
| GB840959A | Improvements in or relating to draughting machines | |
| GB636566A | An improved potato peeling machine | |
| GB639949A | Drawing board stand | |
| CA645884A | Draughting machine | |
| CA615645A | Drawing machine |