1981: Honda invents the first in-car navigation system
World first GPS voice wristwatch for visually impaired by INTEC Co., LTD. — Kickstarter
First GPS signal received 40 years ago | GALILEO
Most Advanced GPS Satellite Comes Together: First Lockheed Martin-Built GPS III Ready for System-Level Testing
Brief History of GPS | The Aerospace Corporation
The Consumer Electronics Hall of Fame: Garmin StreetPilot GPS Navigation System - IEEE Spectrum
First GPS III satellite successfully launched > Air Force > Article Display
The First In-Car Navigation System Was Powered by Helium
The World's First In-Car GPS Looked Like Something From Fallout
First Map-Based Car Navigation System Debuted 14 Years Before GPS - IEEE Spectrum
What year was the first commercial 'satnav' GPS released? | Traffic Technology Today
The evolution of GPS satellites and their use today - GPS World
What did GPS units look like during the early years of the system? - Quora
TI-4100 NAVSTAR Navigator GPS Receiver | Time and Navigation
Brief History of GPS | The Aerospace Corporation
A brief History of GPS In-Car Navigation - NDrive
U.S. Air Force's First Advanced GPS III Satellite Shipped To Cape Canaveral For Launch - Aug 27, 2018
The History of Car GPS Navigation
10 Things to Know About History of GPS - Fueloyal
Nokia's 330 Auto Navigation: their first dedicated GPS device | Engadget
Satellite navigation device - Wikipedia
Before There was GPS: Personal Navigation in the early 20th Century - GIS Lounge
1990年に初のGPS式が登場！カーナビの歴史：その2 | トヨタ自動車のクルマ情報サイト‐GAZOO
Satellite navigation device - Wikipedia
Feb. 14, 1989: GPS Enters Orbit | WIRED
First Map-Based Car Navigation System Debuted 14 Years Before GPS - IEEE Spectrum
