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The ornamental design for an electronic ballast, as shown and described.
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Yang, Xin, Zhang, Renjie, Li, Yongshan
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Mar 20 2015 | LI, YONGSHAN | QINGDAO MEFINE ELECTRONICS TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 035352 | /0703 | |
Mar 20 2015 | ZHANG, RENJIE | QINGDAO MEFINE ELECTRONICS TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 035352 | /0703 | |
Mar 20 2015 | YANG, XIN | QINGDAO MEFINE ELECTRONICS TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 035352 | /0703 | |
Apr 07 2015 | QINGDAO MEFINE ELECTRONICS TECHNOLOGY CO., LTD. | (assignment on the face of the patent) | / |
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