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Priority claimed from US06/555,511external-prioritypatent/US4510918A/en
Priority claimed from US06/572,000external-prioritypatent/US4582044A/en
Application filed by Vermont CastingsfiledCriticalVermont Castings
Priority claimed from NZ210359Aexternal-prioritypatent/NZ210359A/en
Publication of NZ224653ApublicationCriticalpatent/NZ224653A/en