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.)
Expired
Application number
CA713464A
Inventor
Sando Yoshikazu
Mori Shigeru
Nasu Kuniharu
Niwa Susumu
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.)
Sando Iron Works Co Ltd
Original Assignee
Sando Iron Works Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA713464ApublicationCriticalpatent/CA713464A/en