| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | France | 2 | |
| #3 | Austria | 1 | |
| #4 | Belgium | 1 | |
| #5 | United Kingdom | 1 | |
| #6 | Italy | 1 | |
| #7 | Netherlands | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Vehicle tyre repairing | |
| #2 | Ropes | |
| #3 | Producing goods from plastic | |
| #4 | Certain plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hahn Friedrich W Dipl Kfm | 1 |
| #2 | Hahn F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2648914A1 | TIRE | |
| DE2518131A1 | Bead wire coupling system - with sleeve compressed into engagement with transverse grooves of increasing depth in the wire | |
| DE2355267A1 | Device for joining ends of tyre bead wires - consisting of copper-zinc alloy sleeve pressed onto ends | |
| GB1343140A | Tyre bead core assembly |