| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Sweden | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Engines, pumps and turbines | |
| #5 | Weapons | |
| #6 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Unspecified technologies | |
| #3 | Pumps | |
| #4 | Measuring force, work and fluid pressure | |
| #5 | Explosiveness missiles | |
| #6 | Clutches and brakes | |
| #7 | Electrically-conductive connections |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dahlstrom Arvid | 6 |
| #2 | Wickenberg Chester H | 2 |
| #3 | Olofsson Sigfrid M | 2 |
| #4 | Olofsson S M | 1 |
| #5 | Dahlstrom A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2649622A1 | Recoilless air gun or pistol - compresses air in several stages by single charging movement | |
| US4040712A | Double-acting electrical receptacle | |
| US4038961A | Pneumatic rifle and hand gun | |
| US3981625A | Pump with gauge means | |
| GB1479993A | Pumps | |
| US4003457A | Clutch having oversized rollers | |
| US3930416A | Laminated drive arms for speed reducer | |
| US3951005A | Multiple arm speed reducer |