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.)
Nickerson (hb) & Sons Ltd
Original Assignee
Nickerson (hb) & Sons 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 Nickerson (hb) & Sons LtdfiledCriticalNickerson (hb) & Sons Ltd
Priority to CA319,702ApriorityCriticalpatent/CA1123257A/fr
Application grantedgrantedCritical
Publication of CA1123257ApublicationCriticalpatent/CA1123257A/fr