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MASS TECHNOLOGY (H.K.) LTD.
| MASS TECHNOLOGY (H.K.) LTD. Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20090015173 | Electronic ballasts without toroidal-magnetic-core and fluorescent lamps employ the same - A toroid-free ballast comprising a filter and rectifier circuit ( | 01-15-2009 |