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.)
Dover Manufacturing Co
Original Assignee
Dover Manufacturing Co
Publication date
Application grantedgrantedCritical
Publication of CA215870ApublicationCriticalpatent/CA215870A/fr