'It's a device used to connect railroad cars; today's automatic knuckle one was patented by Eli Janney in 1873'
a coupler
TRANSPORTATION: Its a device used to connect railroad cars; todays automatic knuckle one was patented by Eli Janney in 1873
It's a device used to connect railroad cars; today's automatic knuckle one was patented by Eli Janney in 1873
It's a device used to connect railroad cars; today's automatic knuckle one was patented by Eli Janney in 1873
TRANSPORTATION
a coupler
TRANSPORTATION