| # | Country | Total Patents | |
|---|---|---|---|
| #1 | German Democratic Republic | 7 | |
| #2 | Czechoslovakia | 6 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Machine tools | |
| #3 | Chemical engineering | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Printing machines | |
| #2 | Special printing | |
| #3 | Cutting | |
| #4 | Mixing | |
| #5 | Physical training equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Doebler Hermann | 13 |
| #2 | Freitag Ernst | 3 |
| Publication | Filing date | Title |
|---|---|---|
| DD159250A3 | Apparatus for mixing the moisture | |
| DD159251A3 | Apparatus for mixing the moisture | |
| DD159837A3 | Device for adjusting the axial change hub of reference rollers | |
| DD157403A3 | Separating device for cross-sectioning the paper track | |
| DD156318A3 | Separating device for cross-sectioning the paper track | |
| DD138957A1 | Color factory | |
| DD139113A1 | Color factory |