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Priority to JP1990121394UpriorityCriticalpatent/JP2579754Y2/ja
Priority to US07/792,589prioritypatent/US5178242A/en
Priority to GB9124485Aprioritypatent/GB2250799B/en
Priority to DE4138117Aprioritypatent/DE4138117C2/de
Publication of JPH0477040UpublicationCriticalpatent/JPH0477040U/ja
Application grantedgrantedCritical
Publication of JP2579754Y2publicationCriticalpatent/JP2579754Y2/ja
