| http://www.w3.org/ns/prov#value | - In order to facilitate introduction of an inspection pig through an introductory conduit having a smaller diameter and into a pipeline of large diameter and transporting a fluid, in particular gas or oil, the invention proposes a device for inspection of pipes having sensors disposed about an outer periphery thereof having radially expandable inspection units (6, 7), wherein, in particular, a fron
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