Assertion: magnetic tape | /r/HasProperty | invented
Facets:
value: for recording sound
type: PURPOSE
Source sentences:
text: Magnetic tape was invented for recording sound by Fritz Pfleumer in 1928 in Germany, based on the invention of magnetic wire recording by Oberlin Smith in 1888 and Valdemar Poulsen in 1898.
text: Magnetic tape was first invented for recording sound by Fritz Pfleumer in 1928 in Germany.
text: Magnetic tape was first invented for recording sound by Fritz Pfleumer in 1928 in Germany.
text: Magnetic tape was invented for recording sound by Fritz Pfleumer in 1928 in Germany, based on the invention of magnetic wire recording by Valdemar Poulsen in 1898.
text: Magnetic tape was invented for recording sound by Fritz Pfleumer in 1928 in Germany, based on the invention of magnetic wire recording by Valdemar Poulsen in 1898.