High school student is with ejecting buffering formula pen container
The utility model discloses a high school student is with ejecting buffering formula pen container, its structure includes steamer tray table, pen container, ejecting buffer, the steamer tray table is connected with the pen container through ejecting buffer, the steamer tray table includes back plat...
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Format: | Patent |
Sprache: | chi ; eng |
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Online-Zugang: | Volltext bestellen |
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