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Priority claimed from US428995Aexternal-prioritypatent/US3882634A/en
Priority claimed from US05/474,269external-prioritypatent/US3973353A/en
Priority claimed from DK673374Aexternal-prioritypatent/DK673374A/da
Application filed by Gravi Mechanics CofiledCriticalGravi Mechanics Co
Priority to DK518681ApriorityCriticalpatent/DK518681A/en
Publication of DK518681ApublicationCriticalpatent/DK518681A/en