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Priority to JP13709987UpriorityCriticalpatent/JPH0523387Y2/ja
Priority to US07/233,034prioritypatent/US4873884A/en
Priority to DE3829559Aprioritypatent/DE3829559C5/de
Publication of JPS6441436UpublicationCriticalpatent/JPS6441436U/ja
Application grantedgrantedCritical
Publication of JPH0523387Y2publicationCriticalpatent/JPH0523387Y2/ja