File:Czestosciomierz-49.9Hz.jpg
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Summary
| Description |
English: Mechanical resonance electromagnetic frequency meter - power frequency: result 49.9 Hz
Deutsch: Zungenfrequenzmesser zur elektromechanischen Messung der Netzfrequenz. Messwert: 49,9 Hz |
| Date | 24 March 2006 (according to Exif data) |
| Source | No machine-readable source provided. Own work assumed (based on copyright claims). |
| Author | No machine-readable author provided. Julo assumed (based on copyright claims). |
Licensing
Julo, the copyright holder of this work, hereby publishes it under the following license:
|
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:15, 24 March 2006 | | 1,804 × 947 (304 KB) | wikimediacommons>Julo | {{en|Mechanical resonance electromagnetic frequency meter}} power frequency: result = 49.9 Hz {{PD|self}} Category:Measuring instruments |
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