| 2814681 | Electric switch assemblage | 1957-11-26 | ||
| 2806907 | Electrical control switch | 1957-09-17 | ||
| 2794093 | Multi-pole relay switches | 1957-05-28 | ||
| 2722574 | Switch | 1955-11-01 | ||
| 2707213 | Oiltight pushbutton selector switch | 1955-04-26 | ||
| 2562420 | Interchangeable electric switch | 1951-07-31 | ||
| 2550777 | Push-button electric switch | 1951-05-01 | ||
| 2514913 | Multiple switch | 1950-07-11 | ||
| 2430064 | Dustproof and moistureproof switch casing | 1947-11-04 | ||
| 2357973 | Liquid-tight electric switch | 1944-09-12 | ||
| 2303833 | Push button switch assembly | 1942-12-01 | ||
| 1996891 | Push button switch | 1935-04-09 | ||
| 1903135 | Push button electric switch | 1933-03-28 | ||
| 1207923 | N/A | 1916-12-12 |