Bitmap fonts are not protected by copyright

What makes it different from traditional typography design is that it focuses on letterform distinction to increase character recognition, ultimately improving readability.

A clean implementation of a common lettering style found on technical drawings, engraved office signs, computer and typewriter keyboards, and some comic books and avionics from the mid-20th century.

B612 is an highly legible open source font family designed and tested to be used on aircraft cockpit screens

A strong, neutral, principles-driven, open-source typeface for text or display

It's perfect as a display face, for marking up comments, and writing passive aggressive office memos.