Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
2000-100 BCE
1990-1991
1990
1990-1991
1992
2000-100
1990s
1990-96
1990
1990
1992
1992
1990
4000-2001 BCE
1992
1992
1992
1990
1991
1980s/ early 1990s
late 1980s/ ealry 1990s
1990s
1990s
1990
1990-95
circa 1990s
1990-1991
1990-1991
30 CE
30 CE
1992
1992
1992
1991
1991
1991
1991
circa 1990
1990
1990-1992
1991-12-5
1990s
1991
1991
1992
1991
1991
1992
1990