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Class Information
Number: 315/146
Name: Electric lamp and discharge devices: systems > Polyphase a.c. supply > Plural discharge control discharge device load devices
Description: Systems having a plurality of discharge device load devices in the system, the discharge devices being provided with a discharge controlling means.

Patents under this class:

Patent Number Title Of Patent Date Issued
8102125 Apparatus and methods for reducing the power consumption of fluorescent lights Jan. 24, 2012
6346782 Multiple lamp ballast system Feb. 12, 2002
4513224 Fluorescent-lighting-system voltage controller Apr. 23, 1985
4219759 Three phase power control unit Aug. 26, 1980
3943406 Control of electronically generated light pulses Mar. 9, 1976

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