| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 27 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Measurement | |
| #3 | Machines | |
| #4 | Transport | |
| #5 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johansson Ernest G | 17 |
| #2 | Palmer Granville E | 4 |
| #3 | Johnson Ernest G | 3 |
| #4 | Coveney James W | 1 |
| #5 | Breeze George E | 1 |
| #6 | John Dante Joseph | 1 |
| #7 | Johannson Ernest G | 1 |
| #8 | Myshrall Frank H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2553510A | Switch | |
| US2639175A | Sander | |
| US2469980A | Sander | |
| US2128648A | Fused switch box | |
| US2128647A | Combination fused switch | |
| US2114188A | Solderless connecter | |
| US2015112A | Apparatus for multiple meter installation | |
| US2048007A | Meter test block | |
| US2083606A | Solderless connecter lug | |
| US2030522A | Test-block for electric meters | |
| US2019862A | Switch box | |
| US2004314A | Cartridge fuse extractor | |
| US2004329A | Switch for electric meters | |
| US2004328A | Fuse mechanism | |
| US2019416A | Electric switch | |
| US2004327A | Switch and fuse mechanism | |
| US1951362A | Magnetic switch | |
| US1733126A | Safety switch | |
| US1796932A | Cabinet | |
| US1693952A | Safety switch |