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.)
PRE-STRESS PIONEERS Ltd
Original Assignee
PRE-STRESS PIONEERS 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
Priority claimed from CA155,125Aexternal-prioritypatent/CA973334A/en
Application filed by PRE-STRESS PIONEERS LtdfiledCriticalPRE-STRESS PIONEERS Ltd
Priority to CA220,196ApriorityCriticalpatent/CA987476A/en
Application grantedgrantedCritical
Publication of CA987476ApublicationCriticalpatent/CA987476A/en