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Priority claimed from US05/874,976external-prioritypatent/US4179614A/en
Priority claimed from US05/941,995external-prioritypatent/US4220852A/en
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Publication of JPS54128490UpublicationCriticalpatent/JPS54128490U/ja
Application grantedgrantedCritical
Publication of JPS6123825Y2publicationCriticalpatent/JPS6123825Y2/ja