| Number | Name | Date | Kind |
|---|---|---|---|
| D217466 | Garrett | May 1970 | |
| D284757 | Engel | Jul 1986 | |
| 612560 | Griggal | Oct 1898 | |
| 4211959 | Deavenport et al. | Jul 1980 |
| Entry |
|---|
| Sporty'S Tool Shop Catalog, .COPYRGT.1983, p. 44, Photo Electric Light Control Socket. |
| Smart-Socket literature. |
| Photographs of Smart Socket, currently made by Costa. |
| Page from Intermatic Brochure. |
| Literature of Diablo Technologies Inc. |
| Photographs of Hemco Socket. |
| Photographs of Socket of Unknown Origin. |