Assertion: parachute's design | /r/CapableOf | place slot
Facets:
Source sentences:
text: In 1944, an American named Frank Derry patented a design that placed slots in the outer edge of the canopy to make a parachute steerable.
text: In 1944, an American named Frank Derry patented a design that placed slots in the outer edge of the canopy to make a parachute steerable.