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
CA186,716A
Inventor
Stephen E. Kerman
Mikihiro Ichikawa
Kazuyuki Gotoh
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.)
Nippon Tsushin Kogyo KK
Tie Communications Inc
Original Assignee
Nippon Tsushin Kogyo KK
Tie Communications Inc
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
Priority claimed from JP1479773Uexternal-prioritypatent/JPS49117430U/ja
Priority claimed from US348286Aexternal-prioritypatent/US3881069A/en
Application filed by Nippon Tsushin Kogyo KK, Tie Communications IncfiledCriticalNippon Tsushin Kogyo KK
Application grantedgrantedCritical
Publication of CA993128ApublicationCriticalpatent/CA993128A/en