File:WOS Patent 4240149 Measuring system.pdf
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Patent 4240149 - Measuring AC Frequency with a Mirco Processor
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 23:16, 27 August 2011 | (92 KB) | WikiSysop (Talk | contribs) | (Patent 4240149 - Measuring AC Frequency with a Mirco Processor) |
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