| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | France | 5 | |
| #3 | Switzerland | 3 | |
| #4 | Denmark | 3 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Casting metal | |
| #2 | Alloys | |
| #3 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dornauf Dr Phil Nat Josef | 3 |
| #2 | H Silumin-Gesellschaft M B | 3 |
| #3 | Pfaff Heinrich | 2 |
| #4 | Kam Dr Kurt | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE715507C | Plug pulling device | |
| DE713586C | Plug pulling device | |
| DE730198C | Process for the production of objects from silicon-containing aluminum alloys | |
| DE691273C | Riveted connection with rivets of large diameter | |
| DE733712C | Process for the production of castings from aluminum-silicon alloys | |
| DE709361C | Process for modifying silicon-containing aluminum alloys |