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Priority to JP1985040771UpriorityCriticalpatent/JPH0352611Y2/ja
Priority to US06/839,864prioritypatent/US4669776A/en
Publication of JPS61155267UpublicationCriticalpatent/JPS61155267U/ja
Application grantedgrantedCritical
Publication of JPH0352611Y2publicationCriticalpatent/JPH0352611Y2/ja
