| 摘要 |
<p>This invention relates to a cassette tape for audio and video recording or reproduction. A tape drum has a width twice that of the tape and moreover, a spiral having the same width as that of the tape is formed on the tape drum so that continuous repeated operations of the tape are provided by reversely combining tape drums. A roller shaft is utilized at an intermediate portion of a travelling path of the tape so as to reverse the tape and both faces (front and back) of the tape can thus be utilized.</p> |
