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Priority to JP8357090UpriorityCriticalpatent/JPH0724208Y2/ja
Priority to CA002044088Aprioritypatent/CA2044088A1/en
Priority to US07/715,964prioritypatent/US5167174A/en
Priority to DE4119925Aprioritypatent/DE4119925C2/de
Publication of JPH0442374UpublicationCriticalpatent/JPH0442374U/ja
Application grantedgrantedCritical
Publication of JPH0724208Y2publicationCriticalpatent/JPH0724208Y2/ja