| 摘要 |
The preselection device exhibits a key (4), provided with a force store, which is equipped with an elastic leaf spring (14) connected to a key slider (5). When the key (4) is operated, this leaf spring slides over a preselection tooth (16) of the preselection toothing (1) of the number roller (3) held by a blocking device (13, 17) and rotates this roller by one step by pushing the preselection tooth (16) during the return of the key (4). <IMAGE>
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