| 摘要 |
597,805. Tubular fluorescent lamps. FROST, R. Aug. 27, 1945, No. 22025. [Classes 75 (iii) and 75 (iv)] A fluorescent lighting tube 9 is hung by straight or inclined tubes 7 from a casing 1 having a longitudinal opening 2 in its upper surface to allow its engagement with the stepped side portions 5 of supporting brackets 4 secured by screws to the ceiling. The casing 1 contains the control switch, choke and condenser for the lamp and the current conductors are enclosed in the tubes 7. |
