Title :
What went wrong XII: What ever happened to¿? These promising developments got sidetracked, untracked, or delayed somewhere along the way
Abstract :
Color-coded numerals identify important dates for these well-publicized developments, both in text and in corresponding time lines (see chart, following pages, showing degree of activity).
Keywords :
Companies; FCC; Geophysical measurement techniques; Ground penetrating radar; Materials; Switches; Videophone systems;
Journal_Title :
Spectrum, IEEE
DOI :
10.1109/MSPEC.1976.6367557
