Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1989
1996
1996
1996
1975
1996
1975-1985
1996
1996
1979
1996
1996
1993
1984
1983
1985
1984
1976
1995
1995
1995
1987
1995
1980
circa 1983
1986
1975
1994
1984; 1983
1985
1976
1980-1989
1993
(1962); 1982
1985
1996
1996
1979
1980-1989
1981-1990
1976-1982
1982
1985
1980
1990-1991
1986
1974-1976
1989
1985