39,920
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Patent US 3646456A: Difference between revisions
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|Title=Logarithmic amplifier | |Title=Logarithmic amplifier | ||
|Company=Tektronix Inc | |Company=Tektronix Inc | ||
|Inventors=Gene Kauffman; Larry | |Inventors=Gene Kauffman; Larry Lockwood | ||
|Filing date=1970-07-09 | |Filing date=1970-07-09 | ||
|Grant date=1972-02-29 | |Grant date=1972-02-29 | ||
}} | }} | ||