United States Patent 3258630
US Patent References:
Electric discharge device
- - 1935423
Low pressure mercury vapor discharge lamp for direct current operation
- - 3117248
Electric discharge device
- - 1935423
Low pressure mercury vapor discharge lamp for direct current operation
- - 3117248
Publication Date:
06/28/1966
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Other Classes:
313/610
International Classes:
H01J61/10; H01J61/04
Foreign References:
| FR906947A |