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Priority claimed from BE2/59682Aexternal-prioritypatent/BE893000A/en
Priority claimed from BE2/59771Aexternal-prioritypatent/BE893805R/en
Application filed by Christiaan Adriaan VandekeybusfiledCriticalChristiaan Adriaan Vandekeybus
Priority claimed from EP83200593Aexternal-prioritypatent/EP0092891B1/en
Application grantedgrantedCritical
Publication of ATE17633T1publicationCriticalpatent/ATE17633T1/en