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File:Mainboard of calculator HP-67 in opened device.jpg

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Description
English: Scientific calculator HP-67 without backcover and batteries, image section shows the main circuit board with most ICs of this early computer.
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Source This file was derived from: Scientific calculator HP-67 without backcover and batteries.jpg
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: cropped to mainboard. The original can be viewed here: Scientific calculator HP-67 without backcover and batteries.jpg. Modifications made by Pittigrilli.

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Date/TimeThumbnailDimensionsUserComment
current15:11, 13 November 2022Thumbnail for version as of 15:11, 13 November 20221,300 × 1,000 (589 KB)Pittigrilli== {{int:filedesc}} == {{Information |Description={{en|1=Scientific calculator HP-67 without backcover and batteries, image section shows the main circuit board with most ICs of this early computer.}} |date=2015-12-19 15:53:27 |Source={{Derived from|Scientific calculator HP-67 without backcover and batteries.jpg|display=50}} |Date=2022-11-13 15:09 (UTC) |Author=* [[:File:Scientific calculator HP-67 without backcover and batteries.jpg|File:Scientific calculator HP-67 without backcover and batt...

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