| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 12 | |
| #2 | France | 2 | |
| #3 | United Kingdom | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools | |
| #3 | Materials and metallurgy | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Making forged metal products | |
| #3 | Casting metal | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Melaun Oscar | 2 |
| #2 | Oscar Melaun | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1735776A | Method of producing clamping plates | |
| GB266598A | Improvements in clamping plates for iron construction supports, and a method of manufacturing the same |