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
CA745541A
Inventor
Sakajiri Shoichi
Kigane Koji
Kobayashi Yoshihiro
Aoyama Masayoshi
Hamana Isao
Fukushima Takaaki
Ikazaki Ko
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.)
Teijin Ltd
Original Assignee
Teikoku Jinzo Kenshi KK
Publication date
Application grantedgrantedCritical
Publication of CA745541ApublicationCriticalpatent/CA745541A/en