Design by Henrique Köhler
Please considere that an inventor's home page should not be self-explaining
VolksNav makes StreetSmart - app for children, the blind etc.
Natural Cartography© / logical position codes
WatchRose© metric alternative to lat / lon
QuoVides® quantification of actual view direction
Vertical Pointing© display of cardinal points
VolksNav© in China
Natural Cartography© / logical position codes
WatchRose© metric alternative to lat / lon
QuoVides® quantification of actual view direction
Vertical Pointing© display of cardinal points
