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Priority to JP13905675UpriorityCriticalpatent/JPS5437204Y2/ja
Priority to US05/680,458prioritypatent/US4079631A/en
Priority to AU13347/76Aprioritypatent/AU499822B2/en
Priority to DE19762618713prioritypatent/DE2618713C2/de
Publication of JPS5252403UpublicationCriticalpatent/JPS5252403U/ja
Application grantedgrantedCritical
Publication of JPS5437204Y2publicationCriticalpatent/JPS5437204Y2/ja