| 摘要 |
A magnetic tape cassette having a four-piece structure comprising a pair of top and bottom cover plates having substantially the same construction, an intermediate frame arranged between the two cover plates of which a front portion is partially cut-out, and a tape guide block which is arranged in the cut-out front portion of the intermediate frame and arranged between the two cover plates. The tape guide block is accurately aligned with the two cover plates by aligning means, thereby preventing occurrences of irregular tape run and off-track or out-of phase recording or play.
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