Together, they allow rapid computation of This single slide rule features both sides • Circular pitch. • Slide rule collectors. • Working depth & whole depth. • Display stand not included. • Industrial design collectors.
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Patent prints are a tasteful and inspiring way to show off your interests and celebrate your passions. This print is an excellent gift for computer technicians, engineers and tech lovers! We've been specializing in patent prints and wall art since 2016, and we've built up an amazing collection (over 1,400 unqiue designs!).
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The Vintage APF Mini Calc 3550 Travel Sized Pocket Calculator is a rare find for collectors of vintage electronics. Made by APF Electronics in Hong Kong, this compact calculator exudes retro charm with its travel-sized design and classic functionality. Perfect for those who appreciate the nostalgia of old-school technology, this calculator is sure to bring a touch of vintage authenticity to any collection or workspace. Just don't forget to bring a battery to keep it powered up and ready to use!
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Middle East. ● Key rollover that can be entered even if you press the next key on the way to the previous key. ● TWO WAY POWER (TWO WAY POWER) for use with solar cells and lithium batteries.
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I only removed from box to put batteries in to test for photos.
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Factory sealed and never used. Colors may vary slightly due to lighting. Approximate Era.
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eBay