Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1989
1984
1983
1985
1984
1987
1984
1986
1983
circa 1983
1986
1990-1991
1987
1983
1986
1985
1984; 1983
1985
1986
2000-100 BCE
1985
1990
1988
1990-1991
1989
1989
1985
2000-100
1990s
1985-1988
1985
1989
1990-96
1988
1989
1984
1987
1988
1987
1985
1984-1986
1985
1990
1988
1988
4000-2001 BCE
1985
1985
1990