| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Civil engineering | |
| #3 | Audio-visual technology | |
| #4 | Machines | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Filing and indexing | |
| #2 | Books | |
| #3 | Safes | |
| #4 | Unspecified technologies | |
| #5 | Advertising | |
| #6 | Office furniture | |
| #7 | Locks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Perreten Michael | 11 |
| Publication | Filing date | Title |
|---|---|---|
| CA178724A | Recorder | |
| CA177024A | Filing cabinet | |
| CA178725A | Till | |
| CA182227A | Permutation lock | |
| US1225171A | Permutation-lock. | |
| US1232389A | Recorder. | |
| US1225169A | Till. | |
| US1225170A | Filing-cabinet. | |
| CA162117A | Filing cabinet | |
| US1245019A | Exhibitor. | |
| US1125391A | File-cabinet. |