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Home › Rotary head drum apparatus including a rotary drum having a head and a switch for selecting the head and magnetic recording and/or reproducing apparatus using the same

Rotary head drum apparatus including a rotary drum having a head and a switch for selecting the head and magnetic recording and/or reproducing apparatus using the same

US Patent 7292412 · Granted Nov 6, 2007

Estimated economic value: $1,184,000 ⓘ

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