| 摘要 |
The trestle (1') consists, on the one hand, of a support (2') having a front presentation face and a rear setting-up face (12), and, on the other hand, of means (5') suitable for allowing the trestle (1') to be set up in a vertical or slightly oblique position interacting with the said rear face (12). It is characterised in that the said means (5'), in the setting-up position, define a pyramid-like volume. <IMAGE>
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