Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Okumura Corp
Furukawa Kogyo Co Ltd
Original Assignee
Okumura Corp
Furukawa Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Okumura Corp, Furukawa Kogyo Co LtdfiledCriticalOkumura Corp
Priority to JP15715076ApriorityCriticalpatent/JPS5380738A/ja
Publication of JPS5380738ApublicationCriticalpatent/JPS5380738A/ja
Publication of JPS5433661B2publicationCriticalpatent/JPS5433661B2/ja