Ski jumping sling
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The ski jumping sling system is training equipment for ski jumpers. It was invented by Spede Pasanen. There was one prototype in the years 1970-1980 in Puijo, Kuopio, Finland.
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The ski jumping sling system is training equipment for ski jumpers. It was invented by Spede Pasanen. There was one prototype in the years 1970-1980 in Puijo, Kuopio, Finland.
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