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Application filedfiledCritical
Priority to JP1338488UpriorityCriticalpatent/JPH0329904Y2/ja
Priority to US07/302,515prioritypatent/US4887974A/en
Priority to CA000589660Aprioritypatent/CA1293779C/en
Priority to EP89101726Aprioritypatent/EP0327060B1/en
Priority to DE89101726Tprioritypatent/DE68909804T2/de
Publication of JPH01118446UpublicationCriticalpatent/JPH01118446U/ja
Application grantedgrantedCritical
Publication of JPH0329904Y2publicationCriticalpatent/JPH0329904Y2/ja
