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Priority to JP50060149ApriorityCriticalpatent/JPS51136340A/ja
Publication of JPS51136340ApublicationCriticalpatent/JPS51136340A/ja
Publication of JPS5511195B2publicationCriticalpatent/JPS5511195B2/ja
JP50060149A1975-05-221975-05-22Automatic door device allowing visval perception of winding tension of winding power transmisson means
GrantedJPS51136340A
(en)