| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | United Kingdom | 4 | |
| #3 | United States | 2 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Punching metal | |
| #3 | Unspecified technologies | |
| #4 | Form printing surfaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Max Singewald | 2 |
| #2 | Singewald Max | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1498308A | Method for the manufacturing of circular bottom plates for sheetmetal receptacles | |
| GB195067A | Method for the manufacturing of circular bottom plates for sheet metal receptacles | |
| GB209332A | Method for manufacturing boxes of sheet metal | |
| US1440561A | Method for manufacturing boxes of sheet metal | |
| GB195512A | Collapsible box of sheet metal | |
| GB192312A | Method for manufacturing boxes of sheet metal |