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.)
Detroit Tool and Engineering Co
Original Assignee
Detroit Tool and Engineering Co
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Filing date
Publication date
Application filed by Detroit Tool and Engineering CofiledCriticalDetroit Tool and Engineering Co
Priority to CA214,170ApriorityCriticalpatent/CA1016785A/en
Application grantedgrantedCritical
Publication of CA1016785ApublicationCriticalpatent/CA1016785A/en