| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 14 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Grinding or polishing devices | |
| #2 | Unspecified technologies | |
| #3 | Tools for connecting or disengaging | |
| #4 | Venting or aerating devices | |
| #5 | Woodworking tools | |
| #6 | Grinding tools | |
| #7 | Sawing | |
| #8 | Forging | |
| #9 | Unspecified technologies | |
| #10 | Wood saws |
| # | Name | Total Patents |
|---|---|---|
| #1 | Forss Frithiof P | 3 |
| #2 | Schmied Joseph M | 2 |
| #3 | Burleigh Arthur C | 2 |
| #4 | Forss Ernest H | 1 |
| #5 | Grafe William H | 1 |
| #6 | Koenig Frank J | 1 |
| #7 | Fred Hedemark | 1 |
| #8 | Allen Benjamin | 1 |
| #9 | Wilson Harry R | 1 |
| #10 | Parker Leonard E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2566183A | Portable power-driven tool | |
| US2564350A | Machine tool | |
| US2618459A | Pneumatic hand tool valve and trigger lock | |
| US2435685A | Floor sanding machine | |
| US2482582A | Portable tool | |
| US2545453A | Rotary pneumatic tool | |
| US2567095A | Portable tool | |
| US2431613A | Floor sander | |
| US2607559A | Valve for pneumatic riveting hammers | |
| US2338358A | Clutch for portable power-driven tools | |
| US2298845A | Impact hammer | |
| US2328613A | Abrading and polishing device | |
| US2272273A | Sanding machine | |
| US2242229A | Abrading device |