Magnetic Recording
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(Difference between revisions) (New page: '''''This article is a stub. You can help the GHN by expanding it.''''' Copenhagen, Denmark. On 1 December 1898 Valdemar Poulsen filed his first patent application for magnetic recording....) |
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Copenhagen, Denmark. On 1 December 1898 Valdemar Poulsen filed his first patent application for magnetic recording. | Copenhagen, Denmark. On 1 December 1898 Valdemar Poulsen filed his first patent application for magnetic recording. | ||
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Revision as of 15:54, 5 January 2009
This article is a stub. You can help the GHN by expanding it.
Copenhagen, Denmark. On 1 December 1898 Valdemar Poulsen filed his first patent application for magnetic recording.
