| http://www.w3.org/ns/prov#value | - On the one hand, as regards the state of the art especially relating to the reeling of paper or board webs, various types of reelers are known, and the good quality of the web reels reeled with the aid of these has been monitored, for example, by line cameras and by various kinds of optical meters and video meters and, in addition, attempts have been made to control the good quality of reeling wit
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