Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1992-1999
1997-2000
2001
2009-2010
1820-1850
1999
1998
2010
circa 2010
circa 2005
1998
1860-1900
1801-1900
2000
1860-1896
1977
2009-2010
circa 2010
1980-1986
1998
1995-2000
circa 2005
circa 2005
1998
circa 1995
1997
1992-1999
2004-2010
1990s
1998
circa 2000
1992
1997-2000
1986-1997
1860-1900
1999
1900-1950
1997-2000
1990-2000