| 摘要 |
641,077. Control systems for discharge lamps. PARAMOUNT INDUSTRIES, Inc. Sept. 10, 1946, No. 27133. [Class 38 (iv)] [Also in Group XI] A fluorescent hand lamp comprises a dry cell battery 68, a choke 65, main switch 53, starting switch 55 and a switch 54 which may be closed to connect a resistance 67 in parallel with a resistance 66 when the battery is partly discharged. Alternatively, the switch 54 may substitute a low resistance for a higher one. Specification 641,129 is referred to. |
