| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | United Kingdom | 3 | |
| #3 | Austria | 2 | |
| #4 | Denmark | 2 | |
| #5 | Switzerland | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lindberg Johan Waldemar | 11 |
| #2 | Johan Waldemar Lindberg | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA191393A | Lock | |
| CA191090A | Device for holding keys in locks | |
| GB129224A | Device for Securing Keys in Locks. | |
| GB119849A | Improvements in Locks. | |
| CA187298A | Door lock | |
| US1244872A | Self-locking door-lock. | |
| GB104886A | Improvement in Self-locking Door-locks. |