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Priority to JP1989061267UpriorityCriticalpatent/JP2517996Y2/ja
Priority to KR1019900000847Aprioritypatent/KR0149662B1/ko
Priority to CA002008629Aprioritypatent/CA2008629C/en
Priority to US07/470,829prioritypatent/US5037151A/en
Publication of JPH031184UpublicationCriticalpatent/JPH031184U/ja
Application grantedgrantedCritical
Publication of JP2517996Y2publicationCriticalpatent/JP2517996Y2/ja
