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Priority to JP1985044832UpriorityCriticalpatent/JPH023671Y2/ja
Priority to DE3545790Aprioritypatent/DE3545790C2/de
Priority to US06/812,573prioritypatent/US4631214A/en
Publication of JPS61162092UpublicationCriticalpatent/JPS61162092U/ja
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Publication of JPH023671Y2publicationCriticalpatent/JPH023671Y2/ja