| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | Austria | 1 | |
| #3 | Belgium | 1 | |
| #4 | Switzerland | 1 | |
| #5 | France | 1 | |
| #6 | Italy | 1 | |
| #7 | Netherlands | 1 | |
| #8 | Sweden | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Unspecified technologies | |
| #3 | Safes | |
| #4 | Indexing scheme relating to hinges | |
| #5 | Office furniture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Drescher Erwin | 6 |
| #2 | Drescher E | 2 |
| #3 | Wiegard Robert Dipl Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3506456A1 | Number lock for a safe | |
| DE2952130A1 | Shelf frame system for storing coins or valuable items - has shelf frames made from square profiles to carry tablets with both fitting into the inner chamber of a safe | |
| DE2705711B1 | Safe with countersunk built-in dial |