Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1990-1991
1990-1991
2000-100 BCE
1990
2000-100
1990s
1990-96
1990
4000-2001 BCE
1990
1990
1991
1991
1991
1990
1990
1990
circa 1990
1990s
1991
1990
1991
1991
1991
1991
2500 BCE
1991
circa 1990
1990-95
circa 1990
1990
1991
1991
1990s
circa 1990
circa 1990
circa 1990
circa 1990
1990
circa 1990s
1990-1991
1990-1991
1990-1991
circa 1990
circa 1991
1991
1991
1990
2000-100