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Priority to JP1989125105UpriorityCriticalpatent/JP2513410Y2/ja
Priority to DE4034087Aprioritypatent/DE4034087A1/de
Priority to US07/604,912prioritypatent/US5088966A/en
Publication of JPH0391557UpublicationCriticalpatent/JPH0391557U/ja
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Publication of JP2513410Y2publicationCriticalpatent/JP2513410Y2/ja