How the biohazard symbol was designed
Charles Baldwin, a retired environmental-health engineer, explains his role in developing the biohazard symbol, which is now showing up everywhere.
I'm Mario Andrei Pantoja Maguiña and this site is a Digital Intersection between the stuff I do and the stuff I like. Go straight to the content and you'll see what I've been doing and what I've found on my travels around the internets.
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