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
CA085697A
Inventor
Yumoto Hirokazu
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.)
Sumida Shiko Co Ltd
Original Assignee
Sumida Shiko 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 Sumida Shiko Co LtdfiledCriticalSumida Shiko Co Ltd
Priority to CA085697ApriorityCriticalpatent/CA918421A/en
Application grantedgrantedCritical
Publication of CA918421ApublicationCriticalpatent/CA918421A/en