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Application filed by Hochstrasser Elisabeth, Juergen HochstrasserfiledCriticalHochstrasser Elisabeth
Publication of ZA843920BpublicationCriticalpatent/ZA843920B/xx
ZA843920A1983-06-271984-05-24Turning mechanism operating alternately in opposite directions to facilitate the driving in or extracting of piles
ZA843920B
(en)