On January 12, 1960, Arnold Junker, was issued U.S. Patent No. 2,920,841 on a Helicopter with Body Attaching Means.
Perhaps the most remarkable thing about the patent is how happy the test subject looks facing certain doom.
HDP Patents Blog
On January 12, 1960, Arnold Junker, was issued U.S. Patent No. 2,920,841 on a Helicopter with Body Attaching Means.
Perhaps the most remarkable thing about the patent is how happy the test subject looks facing certain doom.