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Priority claimed from US05/943,793external-prioritypatent/US4210536A/en
Priority claimed from US05/943,738external-prioritypatent/US4207192A/en
Priority claimed from US05/956,032external-prioritypatent/US4220489A/en
Application filed by Albany International Corp.filedCriticalAlbany International Corp.
Priority claimed from EP79301885Aexternal-prioritypatent/EP0009374B1/en
Application grantedgrantedCritical
Publication of ATE7575T1publicationCriticalpatent/ATE7575T1/en