The automated in-car navigator that predated satellites

JD Fri, 08/10/2018 - 11:05
The Iter-Auto had map scrolls instead of a screen.  A US patent granted in 1921 to one John J. Bovy describes a dashboard-mounted navigation aid for drivers that uses maps printed on scrolls.
What is the category of this post? (choose up to 2): 
JD's picture
About the author
"The only no-compromise gun lobby in Washington"– Ron Paul