| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 9 | |
| #2 | Germany | 5 | |
| #3 | United Kingdom | 4 | |
| #4 | Canada | 3 | |
| #5 | Australia | 2 | |
| #6 | Brazil | 2 | |
| #7 | Spain | 2 | |
| #8 | Italy | 2 | |
| #9 | United States | 2 | |
| #10 | Belgium | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Civil engineering | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Unspecified technologies | |
| #3 | Milling | |
| #4 | Accessories for machine tools | |
| #5 | Punching metal | |
| #6 | Sawing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Crasnianski Serge | 7 |
| #2 | Crasnianski S | 3 |
| #3 | Crasnianski Serge Paul | 2 |
| #4 | Crasnianski Monsieur Serge | 1 |
| #5 | Nouchy El Baz | 1 |
| #6 | Crasnianski Serge P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1418268A | Flat key for cylinder locks | |
| GB1401104A | Flat key and process for the production thereof | |
| GB1398804A | Automatic key copying machine | |
| GB1400952A | Apparatus for automatically duplicating flat keys | |
| FR2149008A5 | Flat-headed key blank - with epoxy resin decoration |