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|Title=Line frequency switching power supply | |Title=Line frequency switching power supply | ||
|Company=Tektronix Inc | |Company=Tektronix Inc | ||
|Inventors=Matt | |Inventors=Matt Zimmerman | ||
|Filing date=1986-09-15 | |Filing date=1986-09-15 | ||
|Grant date=1987-07-28 | |Grant date=1987-07-28 | ||
}} | }} |