| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Transport | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Accessories for machine tools | |
| #2 | Unspecified technologies | |
| #3 | Tools for connecting or disengaging | |
| #4 | Turning | |
| #5 | Sawing | |
| #6 | Ammunition fuzes | |
| #7 | Finishing work on buildings | |
| #8 | Pipes | |
| #9 | Ships | |
| #10 | Hand-held cutting tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Henry Persson | 6 |
| #2 | Persson Henry | 6 |
| Publication | Filing date | Title |
|---|---|---|
| US3689168A | Mountable chip breaker and flute cleaner for rotating twist drills | |
| US3667080A | Flute cleaner for twist drills | |
| US3552014A | Edge deburring tool | |
| US3520527A | Quick-change vise | |
| US3524262A | Setting gauge for work-holders | |
| US3460432A | Sheet metal and plate deburring machine | |
| US2944374A | Grinding tool | |
| GB683740A | A new or improved work-holding vise | |
| US2482025A | Nut breaking tool | |
| GB597570A | Boats and ships | |
| US2321770A | Loading tool | |
| US2321769A | Testing apparatus | |
| GB537942A | Flange jack | |
| US2213227A | Flange jack | |
| US1546022A | Floor jack |