| http://www.w3.org/ns/prov#value | - Of course, such an electronic sensor also requires a voltage supply and the connecting lines required therefor, which are disadvantageous in contrast to the purely mechanical solution. [0026] Likewise, the device for changing the spring force of the spring element can also be formed by an electronic element, e.g. an electric servo-motor or the like, which can infinitely vary the spring force of th
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