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.)
N Greening Ltd
Original Assignee
N Greening 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 N Greening LtdfiledCriticalN Greening Ltd
Priority to CA272,598ApriorityCriticalpatent/CA1055893A/fr
Application grantedgrantedCritical
Publication of CA1055893ApublicationCriticalpatent/CA1055893A/fr