| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 11 | |
| #2 | Austria | 6 | |
| #3 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Thread cutting | |
| #2 | Making needles | |
| #3 | Transport or storage devices | |
| #4 | Forging | |
| #5 | Grinding or polishing devices | |
| #6 | Making forged metal products |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rorschach Amstutz Levin Cie A- | 11 |
| Publication | Filing date | Title |
|---|---|---|
| DE429248C | Slot saw device on machines for processing screw heads | |
| DE429249C | Feeding device for screw thread milling machines |