Show HN: My dad designed and built a ventilator prototype with a bicycle pump https://ift.tt/39lNCSD

Show HN: My dad designed and built a ventilator prototype with a bicycle pump https://ift.tt/3bvpiPL March 27, 2020 at 05:11PM

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Launch HN: PillarPlus (YC W20) – Automatically create construction blueprints https://ift.tt/2yet5m3

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