Number | Name | Date | Kind |
---|---|---|---|
D189830 | Anderson | Feb 1961 | |
D218356 | Bobrick | Aug 1970 | |
D300874 | Szymanek | Apr 1989 | |
4338653 | Marrero | Jul 1982 | |
5343373 | Tillotson | Aug 1994 |
Entry |
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Illuminating Engineering. p. 13A, fluorescent lighting fixture, Jun. 1963. |