Here is more on the Fisher Space Pen.
U.S. Patent 3,285,228 was granted to Paul C. Fisher on 1966-11-15 for the “Anti-Gravity Pen”.
Here is more on the Fisher Space Pen.
U.S. Patent 3,285,228 was granted to Paul C. Fisher on 1966-11-15 for the “Anti-Gravity Pen”.
And after the Apollo 1 fire, we didn’t want to have graphite bits floating around a 100% oxygen environment.