Number | Name | Date | Kind |
---|---|---|---|
3154281 | Frank | Oct 1964 | |
5221139 | Belfer | Jun 1993 |
Number | Date | Country |
---|---|---|
21441 | Jan 1899 | GBX |
Entry |
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New 4-Pin Long Twin Tube Lampholder, Leviton T-8 Fluorescent, Apr. 1991. |
Norbert Belfer Lighting Catalog, p. 15, 1990. |