"Apparatuses and instruments for shipping, photography, filming, weighing, rescue and instruction, scientific, optical, surveying, measuring apparatuses and instruments,signal and control apparatuses and instruments in particular for determining the geographical coordinates of a pipeline; devices and apparatuses for the location of cleaning and inspection machines in a pipeline, in particular by low-frequency signals or by magnetic signals; devices and apparatuses for determining the geometry of pipelines of all types; devices and apparatuses for measuring the free span and the change in the weight-lining of an off-shore pipeline; devices and apparatuses for detecting and calculating deposit quantities in pipelines; devices and apparatuses for examining metal loss in pipelines, in particular on the inner and outer pipe walls; devices and apparatuses for monitoring tanks, in particular for inspecting the tank bottom and the perpendicular tank walls; devices and apparatuses for inspecting pipelines having smaller diameters, in particular high-pressure steel pipes; devices for recording and playback of sound and picture, in particular devices and apparatuses for transmitting detected pipeline data; data-processing devices and computers for detecting and for evaluating the inspection data of pipelines of all types, as well as computer programs for this purpose and computer programs for storing and administering the inspection data of pipelines of all types; data carriers, in particular with data and with computer programs for evaluating the inspection data of pipelines of all types, as well as computer programs for storing and administering the inspection data of pipelines of all types;"