Niels Christensen was born in 1865.
Niels Christian Christensen was born in 1881.
Niels Christensen died in 1952.
Niels Christian Christensen died in 1945.
Conrad Christensen was born in 1882.
The O-ring was invented by Niels Christensen (1865-1952); a Danish-American inventor.
Peter Christensen was born in 1975.
Willam Christensen was born in 1902.
Marit Christensen was born in 1948.
Emiel Christensen was born in 1895.
Leif Christensen was born in 1950.
Jørn Christensen was born in 1959.
Halfdan Christensen was born in 1873.