rse</a></li>
	<li><a href="http://www.mrob.com/pub/math/sliderules.html" target="_blank">DIY Slide Rules</a></li>
	<li><a href="http://www.antiquark.com/sliderule/sim/n909es/virtual-n909-es.html" target="_blank">Pickett N909-ES Emulator</a></li>
</ul>

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