Foldable piano keyboard
The utility model belongs to the technical field of electron peripheral hardware technique and specifically relates to indicate a foldable piano keyboard, including a side key dish, the 2nd side key dish, in first in keyboard, the second keyboard and a plurality of coupling mechanism, the both ends...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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