Category:Tefi
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Tefi (Tefi-Apparatebau) was a German electronics company from Porz bei Koln, remembered for the introduction of Tefifon - mechanical sound recording system using cassetes with embossed plastic tape.
Subcategories
This category has the following 2 subcategories, out of 2 total.
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Media in category "Tefi"
The following 4 files are in this category, out of 4 total.
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Rillen einer Tefifonkassette.jpg 5,314 × 3,543; 5.41 MB
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Tefi Radio in Schwelm, Kirchstr 10 (1959)a.jpg 1,195 × 733; 529 KB
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Tefi Radio in Schwelm, Kirchstr 10 (1959)b.jpg 829 × 1,200; 769 KB
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Tefi Radio in Schwelm, Kirchstr 10 (1959)c.jpg 1,200 × 800; 651 KB
