<P> However , the first modern three point seat belt ( the so - called CIR - Griswold restraint ) used in most consumer vehicles today was patented in 1955 U.S. Patent 2,710,649 by the Americans Roger W. Griswold and Hugh DeHaven . </P>
<P> However , the first modern three point seat belt ( the so - called CIR - Griswold restraint ) used in most consumer vehicles today was patented in 1955 U.S. Patent 2,710,649 by the Americans Roger W. Griswold and Hugh DeHaven . </P>
when was the three point seat belt invented
when was the three point seat belt invented
1955
1955