One Ruler to Rule them All. A PCB ruler with useful conversions and information.
CAB-14574 - SparkFun
SPARKFUN ELECTRONICS - РКС Компоненти - РАДІОМАГ
SparkFun 定規風PCB — スイッチサイエンス
Description Features Documents One ruler to rule them all. This is a basic 12 inch ruler, but made from a PCB. We have included a lots of useful
SparkFun PCB Ruler - 12 Inch
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