| 摘要 |
The present invention provides a recording tape cartridge comprising: a rectangular case having, at a corner portion, an opening for pulling-out of one end of a recording tape, and accommodating the recording tape; and a cover member which opens and closes the opening. The opening is formed by cutting-off the corner portion of the rectangular case, and when the cover member at least opens the opening, the cover member is accommodated within the case.
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