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Priority to JP12710685UpriorityCriticalpatent/JPH0113916Y2/ja
Priority to DE3603721Aprioritypatent/DE3603721C2/de
Publication of JPS6235189UpublicationCriticalpatent/JPS6235189U/ja
Priority to US07/153,569prioritypatent/US4796924A/en
Priority to US07/228,936prioritypatent/US4978148A/en
Application grantedgrantedCritical
Publication of JPH0113916Y2publicationCriticalpatent/JPH0113916Y2/ja
