| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | Switzerland | 1 | |
| #3 | Denmark | 1 | |
| #4 | Spain | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | Finishing work on buildings | |
| #3 | Locks | |
| #4 | Hinges for doors or windows | |
| #5 | Indexing scheme relating to hinges |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hildebrandt Ernst | 9 |
| #2 | Quatram Franz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3737246A1 | Device for predetermining joint divisions on a surface which is to be tiled or panelled, and process for laying tiles or panels with the aid thereof | |
| GB189630058A | A New Device for Use in Airing Beds. |