File:Norton mechanical filter.png
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Norton_mechanical_filter.png (715 × 498 pixels, file size: 35 KB, MIME type: image/png)
Summary
| Description |
A mechanical filter designed using electrical network theory |
|---|---|
| Source |
US patent US1792655 |
| Date |
31st May 1929 (filed) |
| Author | |
| Permission (Reusing this file) |
See below. |
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:54, 17 January 2017 | | 715 × 498 (35 KB) | 127.0.0.1 (talk) | A mechanical filter designed using electrical network theory |
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File usage
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