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Priority claimed from GB8580/77Aexternal-prioritypatent/GB1597832A/en
Application filed by Foseco Trading AgfiledCriticalFoseco Trading Ag
Publication of IT7867403A0publicationCriticalpatent/IT7867403A0/en
Application grantedgrantedCritical
Publication of IT1156907BpublicationCriticalpatent/IT1156907B/en
IT6740378A1977-03-011978-02-28Riser knock-off core for foundry mould - has base or ring with projection in frictional contact with lining bush which forms wall of riser
IT1156907B
(en)