Temporary stop board
The utility model discloses a temporary stop board which comprises a top shell used for pasting numbers and internally provided with a lock catch hook. The bottom shell is movably connected with the top shell; the elastic assembly is arranged in the bottom shell and can rebound the top shell to the...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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