Valdemar Poulsen died on August 6, 1942, in New York City, New York, USA.
Valdemar Poulsen was Danish
Valdemar Poulsen was born on November 23, 1869.
Valdemar Poulsen was born on November 23, 1869.
The principle of magnetic recording was first developed in 1893 by a Danish inventor, Valdemar Poulsen
The principle of magnetic recording was first developed in 1893 by a Danish inventor, Valdemar Poulsen
Valdemar Eiberg died in 1965.
Valdemar Rørdam died in 1946.
Valdemar Liljeström died in 1960.
Valdemar Koch died in 1902.
Valdemar Knudsen died in 1898.
Valdemar Laursen died in 1989.
Valdemar Bøggild died in 1943.