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.)
Demco Inc
Original Assignee
Demco 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
Application filed by Demco IncfiledCriticalDemco Inc
Priority to CA000441220ApriorityCriticalpatent/CA1213153A/fr
Application grantedgrantedCritical
Publication of CA1213153ApublicationCriticalpatent/CA1213153A/fr