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Priority to JP6126388UpriorityCriticalpatent/JPH01165467U/ja
Priority to US07/322,150prioritypatent/US4912398A/en
Priority to GB8906193Aprioritypatent/GB2217855B/en
Priority to DE3912048Aprioritypatent/DE3912048A1/de
Publication of JPH01165467UpublicationCriticalpatent/JPH01165467U/ja