The Boeing aviation company.
boing
A Boeing 747 is a jet aircraft, so this is a strange question.
The 747 was made by boeing.
Boeing Aircraft Company builds the 737 and 747.
Boeing Commercial Airplanes
Boeing makes those two models.
It was the Boeing 747 aircraft. Bill gates was not alive in 1920.
Boeing 747 Jet
All of those Boeing aircraft are twin jet except the 747 which has 4.
Boeing
Boeing of USA and Airbus of Europe Makes such planes and sell to all world airline companies. There are other aircraft companies who makes commercial planes but not as big as 747 or 737.